./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP --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 12db216c7e0e1c5fdc67d2c719f53ace6d4be7de02773cc5c22d3000e76bff14 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:40:38,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:40:38,076 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:40:38,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:40:38,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:40:38,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:40:38,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:40:38,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:40:38,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:40:38,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:40:38,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:40:38,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:40:38,121 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:40:38,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:40:38,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:40:38,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:40:38,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:40:38,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:40:38,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:40:38,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:40:38,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:40:38,127 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:40:38,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:40:38,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:40:38,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:40:38,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:40:38,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:40:38,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:40:38,130 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:40:38,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:40:38,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:40:38,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:40:38,132 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:40:38,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:40:38,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:40:38,133 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:40:38,133 INFO L153 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_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12db216c7e0e1c5fdc67d2c719f53ace6d4be7de02773cc5c22d3000e76bff14 [2023-11-06 22:40:38,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:40:38,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:40:38,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:40:38,480 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:40:38,481 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:40:38,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i [2023-11-06 22:40:41,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:40:42,389 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:40:42,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i [2023-11-06 22:40:42,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/data/9649b09b6/7f072b29b4cf4c40ba4f5c7e93161bf0/FLAGc7eae5516 [2023-11-06 22:40:42,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/data/9649b09b6/7f072b29b4cf4c40ba4f5c7e93161bf0 [2023-11-06 22:40:42,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:40:42,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:40:42,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:40:42,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:40:42,467 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:40:42,468 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:40:42" (1/1) ... [2023-11-06 22:40:42,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee59f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:42, skipping insertion in model container [2023-11-06 22:40:42,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:40:42" (1/1) ... [2023-11-06 22:40:42,628 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:40:42,920 WARN L240 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_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4497,4510] [2023-11-06 22:40:42,929 WARN L240 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_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4557,4570] [2023-11-06 22:40:44,140 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,142 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,143 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,145 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,147 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,175 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,176 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,177 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,178 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,186 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,189 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,191 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,191 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,644 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:40:44,646 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:40:44,647 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:40:44,648 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:40:44,650 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:40:44,650 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:40:44,651 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:40:44,652 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:40:44,653 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:40:44,660 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:40:44,971 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:44,981 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,071 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,072 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,073 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,073 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,074 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,076 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,077 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,078 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,078 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,078 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,079 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,079 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,080 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,084 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,084 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,085 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,085 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,088 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,090 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,101 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,103 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,105 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:40:45,185 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:40:45,212 WARN L240 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_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4497,4510] [2023-11-06 22:40:45,214 WARN L240 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_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4557,4570] [2023-11-06 22:40:45,277 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,278 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,278 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,279 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,279 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,287 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,287 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,291 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,292 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,293 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,294 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,295 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,295 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,356 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:40:45,357 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:40:45,359 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:40:45,360 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:40:45,361 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:40:45,362 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:40:45,363 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:40:45,364 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:40:45,364 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:40:45,365 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:40:45,455 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,460 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2023-11-06 22:40:45,485 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,486 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,486 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,486 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,487 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,487 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,487 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,488 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,488 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,489 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,489 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,489 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,489 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,490 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,491 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,491 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,491 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,493 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,494 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,499 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,500 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,500 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:40:45,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:40:45,718 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,719 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,719 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,719 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,719 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,720 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,720 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,720 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,720 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,720 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,721 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,721 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,721 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,721 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,721 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:40:45,730 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:40:45,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45 WrapperNode [2023-11-06 22:40:45,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:40:45,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:40:45,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:40:45,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:40:45,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:45,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:45,961 INFO L138 Inliner]: procedures = 696, calls = 1880, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1165 [2023-11-06 22:40:45,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:40:45,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:40:45,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:40:45,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:40:45,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:45,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:46,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:46,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:46,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:46,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:46,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:46,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:46,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:40:46,204 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:40:46,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:40:46,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:40:46,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (1/1) ... [2023-11-06 22:40:46,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:40:46,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:46,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:46,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:40:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-06 22:40:46,300 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-06 22:40:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2023-11-06 22:40:46,300 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2023-11-06 22:40:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-06 22:40:46,301 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-06 22:40:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:40:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-06 22:40:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-06 22:40:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-06 22:40:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-06 22:40:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-06 22:40:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-06 22:40:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-06 22:40:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-06 22:40:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-06 22:40:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-06 22:40:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:40:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-06 22:40:46,304 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-06 22:40:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:40:46,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:40:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:40:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:40:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:40:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-06 22:40:46,306 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-06 22:40:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-06 22:40:46,306 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-06 22:40:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:40:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:40:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-06 22:40:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-06 22:40:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-06 22:40:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-06 22:40:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-06 22:40:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-06 22:40:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-06 22:40:46,310 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-06 22:40:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-06 22:40:46,310 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-06 22:40:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-06 22:40:46,311 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-06 22:40:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:40:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:40:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:40:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:40:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-06 22:40:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-06 22:40:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-06 22:40:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-06 22:40:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-06 22:40:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-06 22:40:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:40:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-06 22:40:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-06 22:40:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:40:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:40:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-06 22:40:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-06 22:40:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-06 22:40:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-06 22:40:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-06 22:40:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-06 22:40:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-06 22:40:46,318 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-06 22:40:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:40:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-06 22:40:46,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-06 22:40:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2023-11-06 22:40:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2023-11-06 22:40:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-06 22:40:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-06 22:40:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-06 22:40:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-06 22:40:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:40:46,754 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:40:46,757 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:40:48,847 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:40:48,869 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:40:48,869 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-06 22:40:48,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:40:48 BoogieIcfgContainer [2023-11-06 22:40:48,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:40:48,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:40:48,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:40:48,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:40:48,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:40:42" (1/3) ... [2023-11-06 22:40:48,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eac51a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:40:48, skipping insertion in model container [2023-11-06 22:40:48,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:45" (2/3) ... [2023-11-06 22:40:48,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eac51a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:40:48, skipping insertion in model container [2023-11-06 22:40:48,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:40:48" (3/3) ... [2023-11-06 22:40:48,887 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness_negated.i [2023-11-06 22:40:48,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:40:48,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:40:49,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:40:49,018 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;@58d9611b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:40:49,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 22:40:49,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 538 states, 308 states have (on average 1.2467532467532467) internal successors, (384), 311 states have internal predecessors, (384), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-06 22:40:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-06 22:40:49,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:40:49,072 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:49,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:40:49,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1275257579, now seen corresponding path program 1 times [2023-11-06 22:40:49,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:49,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817256837] [2023-11-06 22:40:49,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:49,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:49,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:40:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:49,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:40:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:49,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 22:40:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:49,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-06 22:40:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:40:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:40:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:40:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:40:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:40:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:40:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:40:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:40:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:40:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-06 22:40:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-06 22:40:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 22:40:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-06 22:40:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 22:40:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 22:40:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-06 22:40:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-06 22:40:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-06 22:40:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-06 22:40:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-06 22:40:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-06 22:40:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-06 22:40:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-06 22:40:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-06 22:40:50,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:50,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817256837] [2023-11-06 22:40:50,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817256837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:50,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:50,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:40:50,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035473804] [2023-11-06 22:40:50,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:50,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:40:50,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:50,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:40:50,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:40:50,543 INFO L87 Difference]: Start difference. First operand has 538 states, 308 states have (on average 1.2467532467532467) internal successors, (384), 311 states have internal predecessors, (384), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-06 22:40:53,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:40:53,088 INFO L93 Difference]: Finished difference Result 1222 states and 2027 transitions. [2023-11-06 22:40:53,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:40:53,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2023-11-06 22:40:53,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:40:53,130 INFO L225 Difference]: With dead ends: 1222 [2023-11-06 22:40:53,131 INFO L226 Difference]: Without dead ends: 690 [2023-11-06 22:40:53,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:40:53,149 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 200 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:40:53,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1136 Invalid, 1016 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [252 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-06 22:40:53,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-11-06 22:40:53,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 531. [2023-11-06 22:40:53,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 302 states have (on average 1.228476821192053) internal successors, (371), 304 states have internal predecessors, (371), 196 states have call successors, (196), 32 states have call predecessors, (196), 31 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2023-11-06 22:40:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 761 transitions. [2023-11-06 22:40:53,363 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 761 transitions. Word has length 167 [2023-11-06 22:40:53,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:40:53,363 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 761 transitions. [2023-11-06 22:40:53,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-06 22:40:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 761 transitions. [2023-11-06 22:40:53,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-06 22:40:53,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:40:53,379 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:53,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:40:53,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:40:53,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:53,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1164316567, now seen corresponding path program 1 times [2023-11-06 22:40:53,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:53,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873036920] [2023-11-06 22:40:53,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:53,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:40:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:40:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 22:40:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-06 22:40:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:40:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:40:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:40:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:40:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:40:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:40:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:40:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:40:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:40:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-06 22:40:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-06 22:40:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 22:40:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-06 22:40:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 22:40:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 22:40:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-06 22:40:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-06 22:40:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-06 22:40:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-06 22:40:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-06 22:40:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-06 22:40:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-06 22:40:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-06 22:40:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:54,610 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2023-11-06 22:40:54,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:54,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873036920] [2023-11-06 22:40:54,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873036920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:54,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728143000] [2023-11-06 22:40:54,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:54,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:54,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:54,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:54,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:40:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:55,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 2430 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:40:55,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-11-06 22:40:55,422 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:40:55,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728143000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:55,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:40:55,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-06 22:40:55,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300156614] [2023-11-06 22:40:55,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:55,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:40:55,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:55,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:40:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:40:55,427 INFO L87 Difference]: Start difference. First operand 531 states and 761 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-06 22:40:55,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:40:55,996 INFO L93 Difference]: Finished difference Result 1031 states and 1490 transitions. [2023-11-06 22:40:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:40:55,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 167 [2023-11-06 22:40:55,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:40:56,004 INFO L225 Difference]: With dead ends: 1031 [2023-11-06 22:40:56,005 INFO L226 Difference]: Without dead ends: 533 [2023-11-06 22:40:56,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:40:56,011 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 787 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:40:56,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 2660 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:40:56,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-11-06 22:40:56,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2023-11-06 22:40:56,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 303 states have (on average 1.2277227722772277) internal successors, (372), 306 states have internal predecessors, (372), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (204), 194 states have call predecessors, (204), 194 states have call successors, (204) [2023-11-06 22:40:56,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 772 transitions. [2023-11-06 22:40:56,117 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 772 transitions. Word has length 167 [2023-11-06 22:40:56,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:40:56,119 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 772 transitions. [2023-11-06 22:40:56,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-06 22:40:56,120 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 772 transitions. [2023-11-06 22:40:56,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-06 22:40:56,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:40:56,124 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 3, 3, 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] [2023-11-06 22:40:56,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:56,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:56,344 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:40:56,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:56,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1874982858, now seen corresponding path program 1 times [2023-11-06 22:40:56,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:56,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428064267] [2023-11-06 22:40:56,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:56,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:40:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:40:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 22:40:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-06 22:40:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:40:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:40:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:40:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:40:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:40:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:40:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:40:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-06 22:40:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-06 22:40:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:40:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-06 22:40:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-06 22:40:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 22:40:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 22:40:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:40:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-06 22:40:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-06 22:40:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-06 22:40:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-06 22:40:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-06 22:40:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 22:40:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 22:40:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-06 22:40:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-06 22:40:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:57,743 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2023-11-06 22:40:57,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:57,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428064267] [2023-11-06 22:40:57,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428064267] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:57,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731410362] [2023-11-06 22:40:57,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:57,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:57,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:57,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:57,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:40:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:58,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 2480 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:40:58,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-11-06 22:40:58,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:40:58,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731410362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:58,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:40:58,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-11-06 22:40:58,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148732701] [2023-11-06 22:40:58,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:58,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:40:58,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:58,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:40:58,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:40:58,624 INFO L87 Difference]: Start difference. First operand 533 states and 772 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-06 22:40:59,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:40:59,636 INFO L93 Difference]: Finished difference Result 1054 states and 1570 transitions. [2023-11-06 22:40:59,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:40:59,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 175 [2023-11-06 22:40:59,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:40:59,643 INFO L225 Difference]: With dead ends: 1054 [2023-11-06 22:40:59,644 INFO L226 Difference]: Without dead ends: 554 [2023-11-06 22:40:59,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-11-06 22:40:59,649 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 827 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 3780 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:40:59,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 3780 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:40:59,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-06 22:40:59,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 552. [2023-11-06 22:40:59,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 319 states have (on average 1.2351097178683386) internal successors, (394), 322 states have internal predecessors, (394), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-06 22:40:59,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 830 transitions. [2023-11-06 22:40:59,732 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 830 transitions. Word has length 175 [2023-11-06 22:40:59,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:40:59,734 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 830 transitions. [2023-11-06 22:40:59,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-06 22:40:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 830 transitions. [2023-11-06 22:40:59,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-06 22:40:59,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:40:59,738 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 3, 3, 3, 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] [2023-11-06 22:40:59,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:59,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:59,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:40:59,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:59,950 INFO L85 PathProgramCache]: Analyzing trace with hash -189286359, now seen corresponding path program 1 times [2023-11-06 22:40:59,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:59,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394418689] [2023-11-06 22:40:59,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:59,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:00,060 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:00,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740100925] [2023-11-06 22:41:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:00,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:00,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:00,062 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:00,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:41:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:00,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 2621 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:41:00,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:00,912 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-11-06 22:41:00,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:41:00,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:00,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394418689] [2023-11-06 22:41:00,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:00,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740100925] [2023-11-06 22:41:00,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740100925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:00,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:00,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:41:00,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341666002] [2023-11-06 22:41:00,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:00,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:41:00,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:00,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:41:00,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:41:00,918 INFO L87 Difference]: Start difference. First operand 552 states and 830 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-06 22:41:01,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:01,601 INFO L93 Difference]: Finished difference Result 1077 states and 1641 transitions. [2023-11-06 22:41:01,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:41:01,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 190 [2023-11-06 22:41:01,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:01,608 INFO L225 Difference]: With dead ends: 1077 [2023-11-06 22:41:01,608 INFO L226 Difference]: Without dead ends: 558 [2023-11-06 22:41:01,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:41:01,613 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 807 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:01,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 3298 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:41:01,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-06 22:41:01,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 552. [2023-11-06 22:41:01,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 319 states have (on average 1.2351097178683386) internal successors, (394), 322 states have internal predecessors, (394), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-06 22:41:01,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 830 transitions. [2023-11-06 22:41:01,703 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 830 transitions. Word has length 190 [2023-11-06 22:41:01,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:01,705 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 830 transitions. [2023-11-06 22:41:01,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-06 22:41:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 830 transitions. [2023-11-06 22:41:01,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-06 22:41:01,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:01,711 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 3, 3, 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] [2023-11-06 22:41:01,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-06 22:41:01,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:01,924 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:41:01,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:01,924 INFO L85 PathProgramCache]: Analyzing trace with hash 782680933, now seen corresponding path program 1 times [2023-11-06 22:41:01,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:01,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608554102] [2023-11-06 22:41:01,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:01,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:02,070 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:02,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304198452] [2023-11-06 22:41:02,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:02,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:02,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:02,073 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:02,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:41:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:02,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 2693 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:41:02,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:02,909 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-06 22:41:02,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:41:02,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:02,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608554102] [2023-11-06 22:41:02,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:02,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304198452] [2023-11-06 22:41:02,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304198452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:02,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:02,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:41:02,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016556843] [2023-11-06 22:41:02,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:02,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:41:02,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:02,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:41:02,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:41:02,913 INFO L87 Difference]: Start difference. First operand 552 states and 830 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-06 22:41:04,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:04,148 INFO L93 Difference]: Finished difference Result 1087 states and 1648 transitions. [2023-11-06 22:41:04,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:41:04,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 206 [2023-11-06 22:41:04,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:04,157 INFO L225 Difference]: With dead ends: 1087 [2023-11-06 22:41:04,157 INFO L226 Difference]: Without dead ends: 568 [2023-11-06 22:41:04,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:41:04,163 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 857 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:04,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 4367 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:41:04,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-11-06 22:41:04,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 552. [2023-11-06 22:41:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 319 states have (on average 1.2351097178683386) internal successors, (394), 322 states have internal predecessors, (394), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-06 22:41:04,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 830 transitions. [2023-11-06 22:41:04,234 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 830 transitions. Word has length 206 [2023-11-06 22:41:04,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:04,235 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 830 transitions. [2023-11-06 22:41:04,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-06 22:41:04,235 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 830 transitions. [2023-11-06 22:41:04,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-11-06 22:41:04,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:04,241 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:41:04,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:04,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:04,453 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:41:04,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:04,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1345372220, now seen corresponding path program 2 times [2023-11-06 22:41:04,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:04,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527812881] [2023-11-06 22:41:04,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:04,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:04,583 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:04,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1368152494] [2023-11-06 22:41:04,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:41:04,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:04,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:04,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:04,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:41:05,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:41:05,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:41:05,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 1809 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:41:05,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-11-06 22:41:05,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:41:05,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:05,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527812881] [2023-11-06 22:41:05,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:05,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368152494] [2023-11-06 22:41:05,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368152494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:05,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:05,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:41:05,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10246475] [2023-11-06 22:41:05,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:05,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:41:05,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:05,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:41:05,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:41:05,239 INFO L87 Difference]: Start difference. First operand 552 states and 830 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2023-11-06 22:41:05,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:05,382 INFO L93 Difference]: Finished difference Result 560 states and 838 transitions. [2023-11-06 22:41:05,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:41:05,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 221 [2023-11-06 22:41:05,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:05,390 INFO L225 Difference]: With dead ends: 560 [2023-11-06 22:41:05,390 INFO L226 Difference]: Without dead ends: 558 [2023-11-06 22:41:05,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:41:05,392 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 5 mSDsluCounter, 2994 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3752 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:05,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3752 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:41:05,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-06 22:41:05,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 557. [2023-11-06 22:41:05,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 322 states have (on average 1.2329192546583851) internal successors, (397), 325 states have internal predecessors, (397), 199 states have call successors, (199), 33 states have call predecessors, (199), 34 states have return successors, (239), 198 states have call predecessors, (239), 197 states have call successors, (239) [2023-11-06 22:41:05,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 835 transitions. [2023-11-06 22:41:05,458 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 835 transitions. Word has length 221 [2023-11-06 22:41:05,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:05,459 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 835 transitions. [2023-11-06 22:41:05,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2023-11-06 22:41:05,460 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 835 transitions. [2023-11-06 22:41:05,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-06 22:41:05,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:05,465 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:05,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:05,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:05,683 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:41:05,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:05,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1846283689, now seen corresponding path program 3 times [2023-11-06 22:41:05,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:05,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844407058] [2023-11-06 22:41:05,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:05,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:05,793 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:05,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767023181] [2023-11-06 22:41:05,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:41:05,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:05,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:05,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:05,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:41:06,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:41:06,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:41:06,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 2022 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 22:41:06,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:06,870 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-06 22:41:06,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:41:07,227 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2023-11-06 22:41:07,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:07,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844407058] [2023-11-06 22:41:07,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:07,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767023181] [2023-11-06 22:41:07,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767023181] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:41:07,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:41:07,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-06 22:41:07,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677472136] [2023-11-06 22:41:07,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:41:07,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:41:07,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:07,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:41:07,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:41:07,233 INFO L87 Difference]: Start difference. First operand 557 states and 835 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-06 22:41:08,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:08,072 INFO L93 Difference]: Finished difference Result 1063 states and 1613 transitions. [2023-11-06 22:41:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:41:08,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 236 [2023-11-06 22:41:08,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:08,080 INFO L225 Difference]: With dead ends: 1063 [2023-11-06 22:41:08,081 INFO L226 Difference]: Without dead ends: 565 [2023-11-06 22:41:08,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:41:08,087 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 22 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:08,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4866 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:41:08,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-11-06 22:41:08,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 562. [2023-11-06 22:41:08,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 325 states have (on average 1.2307692307692308) internal successors, (400), 327 states have internal predecessors, (400), 201 states have call successors, (201), 34 states have call predecessors, (201), 34 states have return successors, (241), 200 states have call predecessors, (241), 199 states have call successors, (241) [2023-11-06 22:41:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 842 transitions. [2023-11-06 22:41:08,157 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 842 transitions. Word has length 236 [2023-11-06 22:41:08,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:08,158 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 842 transitions. [2023-11-06 22:41:08,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-06 22:41:08,159 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 842 transitions. [2023-11-06 22:41:08,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-06 22:41:08,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:08,165 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-06 22:41:08,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:08,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:08,381 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:41:08,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:08,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1389512256, now seen corresponding path program 4 times [2023-11-06 22:41:08,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:08,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296049061] [2023-11-06 22:41:08,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:08,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:08,543 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:08,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286542655] [2023-11-06 22:41:08,544 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:41:08,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:08,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:08,546 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:08,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:41:09,161 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:41:09,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:41:09,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:41:09,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:09,278 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 237 proven. 3 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-06 22:41:09,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:41:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-06 22:41:09,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:09,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296049061] [2023-11-06 22:41:09,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:09,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286542655] [2023-11-06 22:41:09,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286542655] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:41:09,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:41:09,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-11-06 22:41:09,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854034984] [2023-11-06 22:41:09,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:41:09,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 22:41:09,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:09,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 22:41:09,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:41:09,599 INFO L87 Difference]: Start difference. First operand 562 states and 842 transitions. Second operand has 15 states, 13 states have (on average 8.692307692307692) internal successors, (113), 15 states have internal predecessors, (113), 8 states have call successors, (45), 2 states have call predecessors, (45), 5 states have return successors, (44), 6 states have call predecessors, (44), 8 states have call successors, (44) [2023-11-06 22:41:10,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:10,689 INFO L93 Difference]: Finished difference Result 1248 states and 1909 transitions. [2023-11-06 22:41:10,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:41:10,690 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 8.692307692307692) internal successors, (113), 15 states have internal predecessors, (113), 8 states have call successors, (45), 2 states have call predecessors, (45), 5 states have return successors, (44), 6 states have call predecessors, (44), 8 states have call successors, (44) Word has length 251 [2023-11-06 22:41:10,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:10,699 INFO L225 Difference]: With dead ends: 1248 [2023-11-06 22:41:10,699 INFO L226 Difference]: Without dead ends: 739 [2023-11-06 22:41:10,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 488 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:41:10,705 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 412 mSDsluCounter, 6203 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 7017 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:10,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 7017 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 22:41:10,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2023-11-06 22:41:10,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 729. [2023-11-06 22:41:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 430 states have (on average 1.2674418604651163) internal successors, (545), 434 states have internal predecessors, (545), 261 states have call successors, (261), 35 states have call predecessors, (261), 36 states have return successors, (322), 259 states have call predecessors, (322), 259 states have call successors, (322) [2023-11-06 22:41:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1128 transitions. [2023-11-06 22:41:10,786 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1128 transitions. Word has length 251 [2023-11-06 22:41:10,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:10,787 INFO L495 AbstractCegarLoop]: Abstraction has 729 states and 1128 transitions. [2023-11-06 22:41:10,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 8.692307692307692) internal successors, (113), 15 states have internal predecessors, (113), 8 states have call successors, (45), 2 states have call predecessors, (45), 5 states have return successors, (44), 6 states have call predecessors, (44), 8 states have call successors, (44) [2023-11-06 22:41:10,787 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1128 transitions. [2023-11-06 22:41:10,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-06 22:41:10,793 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:10,793 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 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] [2023-11-06 22:41:10,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:11,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-06 22:41:11,003 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:41:11,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:11,004 INFO L85 PathProgramCache]: Analyzing trace with hash -204288142, now seen corresponding path program 1 times [2023-11-06 22:41:11,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:11,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956115914] [2023-11-06 22:41:11,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:11,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:11,177 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:11,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370502232] [2023-11-06 22:41:11,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:11,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:11,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:11,179 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:11,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:41:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:12,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 3307 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:41:12,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-11-06 22:41:12,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:41:12,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:12,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956115914] [2023-11-06 22:41:12,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:12,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370502232] [2023-11-06 22:41:12,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370502232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:12,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:12,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:41:12,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300378139] [2023-11-06 22:41:12,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:12,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:41:12,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:12,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:41:12,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:41:12,283 INFO L87 Difference]: Start difference. First operand 729 states and 1128 transitions. Second operand has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-06 22:41:13,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:13,300 INFO L93 Difference]: Finished difference Result 1379 states and 2131 transitions. [2023-11-06 22:41:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:41:13,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 274 [2023-11-06 22:41:13,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:13,310 INFO L225 Difference]: With dead ends: 1379 [2023-11-06 22:41:13,310 INFO L226 Difference]: Without dead ends: 691 [2023-11-06 22:41:13,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:41:13,317 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 878 mSDsluCounter, 3722 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 4381 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:13,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 4381 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:41:13,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-11-06 22:41:13,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 675. [2023-11-06 22:41:13,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 405 states have (on average 1.2617283950617284) internal successors, (511), 409 states have internal predecessors, (511), 231 states have call successors, (231), 35 states have call predecessors, (231), 37 states have return successors, (293), 230 states have call predecessors, (293), 229 states have call successors, (293) [2023-11-06 22:41:13,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 1035 transitions. [2023-11-06 22:41:13,381 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 1035 transitions. Word has length 274 [2023-11-06 22:41:13,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:13,382 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 1035 transitions. [2023-11-06 22:41:13,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-06 22:41:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 1035 transitions. [2023-11-06 22:41:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-11-06 22:41:13,387 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:13,388 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-06 22:41:13,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:13,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:13,601 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:41:13,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:13,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1140616008, now seen corresponding path program 1 times [2023-11-06 22:41:13,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:13,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960628584] [2023-11-06 22:41:13,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:13,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:13,781 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:13,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932955952] [2023-11-06 22:41:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:13,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:13,784 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:13,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:41:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:14,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 3498 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:41:14,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:14,856 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-06 22:41:14,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:41:14,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:14,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960628584] [2023-11-06 22:41:14,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:14,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932955952] [2023-11-06 22:41:14,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932955952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:14,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:14,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:41:14,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117353372] [2023-11-06 22:41:14,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:14,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:41:14,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:14,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:41:14,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:41:14,861 INFO L87 Difference]: Start difference. First operand 675 states and 1035 transitions. Second operand has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-06 22:41:15,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:15,532 INFO L93 Difference]: Finished difference Result 1321 states and 2043 transitions. [2023-11-06 22:41:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:41:15,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 5 states have call successors, (33) Word has length 297 [2023-11-06 22:41:15,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:15,541 INFO L225 Difference]: With dead ends: 1321 [2023-11-06 22:41:15,541 INFO L226 Difference]: Without dead ends: 687 [2023-11-06 22:41:15,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:41:15,548 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 858 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 3925 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:15,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 3925 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:41:15,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-11-06 22:41:15,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 661. [2023-11-06 22:41:15,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 393 states have (on average 1.256997455470738) internal successors, (494), 397 states have internal predecessors, (494), 229 states have call successors, (229), 35 states have call predecessors, (229), 37 states have return successors, (290), 228 states have call predecessors, (290), 227 states have call successors, (290) [2023-11-06 22:41:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1013 transitions. [2023-11-06 22:41:15,609 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1013 transitions. Word has length 297 [2023-11-06 22:41:15,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:15,609 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1013 transitions. [2023-11-06 22:41:15,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-06 22:41:15,610 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1013 transitions. [2023-11-06 22:41:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-11-06 22:41:15,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:15,616 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:41:15,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:15,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:41:15,828 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:41:15,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:15,829 INFO L85 PathProgramCache]: Analyzing trace with hash 215323925, now seen corresponding path program 2 times [2023-11-06 22:41:15,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:15,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757787880] [2023-11-06 22:41:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:15,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:15,939 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:15,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108203392] [2023-11-06 22:41:15,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:41:15,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:15,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:15,941 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:15,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:41:17,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:41:17,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:41:17,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 3429 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:41:17,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:17,690 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-11-06 22:41:17,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:41:17,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:17,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757787880] [2023-11-06 22:41:17,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:17,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108203392] [2023-11-06 22:41:17,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108203392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:17,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:17,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:41:17,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222982002] [2023-11-06 22:41:17,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:17,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:41:17,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:17,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:41:17,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:41:17,695 INFO L87 Difference]: Start difference. First operand 661 states and 1013 transitions. Second operand has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-06 22:41:18,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:18,873 INFO L93 Difference]: Finished difference Result 1298 states and 1994 transitions. [2023-11-06 22:41:18,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:41:18,874 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) Word has length 298 [2023-11-06 22:41:18,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:18,881 INFO L225 Difference]: With dead ends: 1298 [2023-11-06 22:41:18,881 INFO L226 Difference]: Without dead ends: 678 [2023-11-06 22:41:18,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:41:18,888 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 908 mSDsluCounter, 4308 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 4959 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:18,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 4959 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:41:18,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-06 22:41:18,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 645. [2023-11-06 22:41:18,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 379 states have (on average 1.2532981530343008) internal successors, (475), 383 states have internal predecessors, (475), 228 states have call successors, (228), 35 states have call predecessors, (228), 36 states have return successors, (279), 226 states have call predecessors, (279), 226 states have call successors, (279) [2023-11-06 22:41:18,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 982 transitions. [2023-11-06 22:41:18,949 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 982 transitions. Word has length 298 [2023-11-06 22:41:18,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:18,949 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 982 transitions. [2023-11-06 22:41:18,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-06 22:41:18,950 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 982 transitions. [2023-11-06 22:41:18,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2023-11-06 22:41:18,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:18,953 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:41:18,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:19,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:19,168 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:41:19,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:19,169 INFO L85 PathProgramCache]: Analyzing trace with hash -918069204, now seen corresponding path program 1 times [2023-11-06 22:41:19,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:19,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099458663] [2023-11-06 22:41:19,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:19,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:19,286 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:19,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240485381] [2023-11-06 22:41:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:19,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:19,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:19,288 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:19,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:41:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:20,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 3661 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:41:20,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:20,421 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 402 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2023-11-06 22:41:20,422 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:41:20,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:20,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099458663] [2023-11-06 22:41:20,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:20,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240485381] [2023-11-06 22:41:20,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240485381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:20,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:20,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:41:20,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132621713] [2023-11-06 22:41:20,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:20,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:41:20,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:20,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:41:20,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:41:20,428 INFO L87 Difference]: Start difference. First operand 645 states and 982 transitions. Second operand has 8 states, 7 states have (on average 14.0) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-06 22:41:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:21,019 INFO L93 Difference]: Finished difference Result 1106 states and 1659 transitions. [2023-11-06 22:41:21,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:41:21,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) Word has length 320 [2023-11-06 22:41:21,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:21,027 INFO L225 Difference]: With dead ends: 1106 [2023-11-06 22:41:21,027 INFO L226 Difference]: Without dead ends: 564 [2023-11-06 22:41:21,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:41:21,033 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 884 mSDsluCounter, 3234 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:21,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 3919 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:41:21,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-11-06 22:41:21,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2023-11-06 22:41:21,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 326 states have (on average 1.2300613496932515) internal successors, (401), 329 states have internal predecessors, (401), 201 states have call successors, (201), 34 states have call predecessors, (201), 35 states have return successors, (243), 200 states have call predecessors, (243), 199 states have call successors, (243) [2023-11-06 22:41:21,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 845 transitions. [2023-11-06 22:41:21,092 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 845 transitions. Word has length 320 [2023-11-06 22:41:21,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:21,093 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 845 transitions. [2023-11-06 22:41:21,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-06 22:41:21,093 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 845 transitions. [2023-11-06 22:41:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-11-06 22:41:21,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:21,097 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:41:21,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:21,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:21,313 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:41:21,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:21,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1009382048, now seen corresponding path program 3 times [2023-11-06 22:41:21,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:21,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130774267] [2023-11-06 22:41:21,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:21,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:21,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:21,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285876348] [2023-11-06 22:41:21,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:41:21,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:21,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:21,441 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:21,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:41:23,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 22:41:23,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:41:23,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 2399 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-06 22:41:23,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:25,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:41:25,165 INFO L351 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 30 treesize of output 25 [2023-11-06 22:41:25,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:41:25,175 INFO L351 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 19 treesize of output 14 [2023-11-06 22:41:25,181 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 269 proven. 2 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2023-11-06 22:41:25,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:41:25,760 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_93| Int) (v_ArrVal_2002 (Array Int Int)) (v_ArrVal_2001 (Array Int Int))) (let ((.cse0 (+ 32 c_aws_array_list_length_~list.offset))) (or (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_93| v_ArrVal_2002) c_aws_array_list_length_~list.base) .cse0) 0)) (< |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_93| (+ |c_#StackHeapBarrier| 1)) (not (= 0 (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_93| v_ArrVal_2001) c_aws_array_list_length_~list.base) .cse0)))))) is different from false [2023-11-06 22:41:25,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:25,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130774267] [2023-11-06 22:41:25,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:25,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285876348] [2023-11-06 22:41:25,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285876348] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:41:25,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:41:25,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-11-06 22:41:25,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956675697] [2023-11-06 22:41:25,765 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:41:25,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-06 22:41:25,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:25,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-06 22:41:25,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=415, Unknown=17, NotChecked=42, Total=552 [2023-11-06 22:41:25,768 INFO L87 Difference]: Start difference. First operand 564 states and 845 transitions. Second operand has 21 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 states have internal predecessors, (115), 7 states have call successors, (35), 4 states have call predecessors, (35), 6 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2023-11-06 22:41:40,155 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] [2023-11-06 22:41:54,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:41:58,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:58,248 INFO L93 Difference]: Finished difference Result 1474 states and 2482 transitions. [2023-11-06 22:41:58,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-06 22:41:58,249 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 states have internal predecessors, (115), 7 states have call successors, (35), 4 states have call predecessors, (35), 6 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) Word has length 313 [2023-11-06 22:41:58,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:58,264 INFO L225 Difference]: With dead ends: 1474 [2023-11-06 22:41:58,264 INFO L226 Difference]: Without dead ends: 969 [2023-11-06 22:41:58,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 317 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=424, Invalid=2316, Unknown=20, NotChecked=102, Total=2862 [2023-11-06 22:41:58,272 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 952 mSDsluCounter, 4896 mSDsCounter, 0 mSdLazyCounter, 11043 mSolverCounterSat, 578 mSolverCounterUnsat, 92 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 5616 SdHoareTripleChecker+Invalid, 11713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 11043 IncrementalHoareTripleChecker+Invalid, 92 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:58,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1268 Valid, 5616 Invalid, 11713 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [578 Valid, 11043 Invalid, 92 Unknown, 0 Unchecked, 30.2s Time] [2023-11-06 22:41:58,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2023-11-06 22:41:58,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 618. [2023-11-06 22:41:58,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 358 states have (on average 1.2374301675977655) internal successors, (443), 364 states have internal predecessors, (443), 220 states have call successors, (220), 36 states have call predecessors, (220), 38 states have return successors, (272), 217 states have call predecessors, (272), 218 states have call successors, (272) [2023-11-06 22:41:58,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 935 transitions. [2023-11-06 22:41:58,411 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 935 transitions. Word has length 313 [2023-11-06 22:41:58,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:58,412 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 935 transitions. [2023-11-06 22:41:58,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 states have internal predecessors, (115), 7 states have call successors, (35), 4 states have call predecessors, (35), 6 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2023-11-06 22:41:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 935 transitions. [2023-11-06 22:41:58,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-11-06 22:41:58,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:58,417 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:41:58,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:58,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:58,632 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:41:58,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:58,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1136350165, now seen corresponding path program 1 times [2023-11-06 22:41:58,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:58,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101787346] [2023-11-06 22:41:58,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:58,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:58,756 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:41:58,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431806653] [2023-11-06 22:41:58,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:58,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:58,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:58,758 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:58,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:41:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:59,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 3701 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:41:59,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:59,916 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2023-11-06 22:41:59,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:41:59,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:59,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101787346] [2023-11-06 22:41:59,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:41:59,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431806653] [2023-11-06 22:41:59,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431806653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:59,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:59,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:41:59,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826895492] [2023-11-06 22:41:59,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:59,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:41:59,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:59,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:41:59,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:41:59,921 INFO L87 Difference]: Start difference. First operand 618 states and 935 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-06 22:42:00,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:00,029 INFO L93 Difference]: Finished difference Result 1211 states and 1913 transitions. [2023-11-06 22:42:00,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:42:00,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 328 [2023-11-06 22:42:00,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:00,039 INFO L225 Difference]: With dead ends: 1211 [2023-11-06 22:42:00,039 INFO L226 Difference]: Without dead ends: 626 [2023-11-06 22:42:00,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:42:00,052 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 7 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:42:00,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2275 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:42:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2023-11-06 22:42:00,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 620. [2023-11-06 22:42:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 360 states have (on average 1.2333333333333334) internal successors, (444), 366 states have internal predecessors, (444), 220 states have call successors, (220), 36 states have call predecessors, (220), 38 states have return successors, (272), 217 states have call predecessors, (272), 218 states have call successors, (272) [2023-11-06 22:42:00,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 936 transitions. [2023-11-06 22:42:00,139 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 936 transitions. Word has length 328 [2023-11-06 22:42:00,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:00,140 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 936 transitions. [2023-11-06 22:42:00,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-06 22:42:00,141 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 936 transitions. [2023-11-06 22:42:00,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-11-06 22:42:00,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:00,144 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:42:00,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:00,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:42:00,359 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:00,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2024667998, now seen corresponding path program 1 times [2023-11-06 22:42:00,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:00,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731536694] [2023-11-06 22:42:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:00,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:00,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:42:00,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595495837] [2023-11-06 22:42:00,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:00,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:42:00,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:00,471 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:42:00,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:42:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:01,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 3565 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:42:01,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2023-11-06 22:42:01,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:42:01,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:01,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731536694] [2023-11-06 22:42:01,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:42:01,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595495837] [2023-11-06 22:42:01,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595495837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:01,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:01,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:42:01,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908700144] [2023-11-06 22:42:01,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:01,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:42:01,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:01,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:42:01,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:42:01,794 INFO L87 Difference]: Start difference. First operand 620 states and 936 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-06 22:42:04,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:04,004 INFO L93 Difference]: Finished difference Result 1209 states and 1832 transitions. [2023-11-06 22:42:04,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:42:04,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 313 [2023-11-06 22:42:04,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:04,012 INFO L225 Difference]: With dead ends: 1209 [2023-11-06 22:42:04,012 INFO L226 Difference]: Without dead ends: 636 [2023-11-06 22:42:04,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:42:04,018 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 895 mSDsluCounter, 4390 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 5059 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:42:04,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 5059 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-06 22:42:04,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2023-11-06 22:42:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 634. [2023-11-06 22:42:04,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 373 states have (on average 1.2386058981233243) internal successors, (462), 378 states have internal predecessors, (462), 221 states have call successors, (221), 36 states have call predecessors, (221), 38 states have return successors, (273), 219 states have call predecessors, (273), 219 states have call successors, (273) [2023-11-06 22:42:04,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 956 transitions. [2023-11-06 22:42:04,096 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 956 transitions. Word has length 313 [2023-11-06 22:42:04,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:04,096 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 956 transitions. [2023-11-06 22:42:04,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-06 22:42:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 956 transitions. [2023-11-06 22:42:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-11-06 22:42:04,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:04,101 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:42:04,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:04,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:42:04,315 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:04,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:04,315 INFO L85 PathProgramCache]: Analyzing trace with hash 662826711, now seen corresponding path program 2 times [2023-11-06 22:42:04,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:04,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684039966] [2023-11-06 22:42:04,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:04,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:04,459 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:42:04,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268521606] [2023-11-06 22:42:04,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:42:04,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:42:04,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:04,461 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:42:04,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-06 22:42:06,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:42:06,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:42:06,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 3706 conjuncts, 237 conjunts are in the unsatisfiable core [2023-11-06 22:42:06,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:07,373 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:42:07,373 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 22:42:09,786 INFO L217 Elim1Store]: Index analysis took 276 ms [2023-11-06 22:42:11,831 INFO L322 Elim1Store]: treesize reduction 320, result has 50.1 percent of original size [2023-11-06 22:42:11,833 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 81 select indices, 81 select index equivalence classes, 3160 disjoint index pairs (out of 3240 index pairs), introduced 81 new quantified variables, introduced 80 case distinctions, treesize of input 406 treesize of output 564 [2023-11-06 22:42:29,471 WARN L667 sPolynomialRelations]: Constructing 2147483647(two to the power of 80 dual juncts. [2023-11-06 22:42:29,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:29,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684039966] [2023-11-06 22:42:29,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:42:29,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268521606] [2023-11-06 22:42:29,474 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-06 22:42:29,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:29,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-06 22:42:29,675 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:669) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:541) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) [2023-11-06 22:42:29,678 INFO L158 Benchmark]: Toolchain (without parser) took 107218.85ms. Allocated memory was 163.6MB in the beginning and 685.8MB in the end (delta: 522.2MB). Free memory was 111.5MB in the beginning and 569.5MB in the end (delta: -458.0MB). Peak memory consumption was 436.5MB. Max. memory is 16.1GB. [2023-11-06 22:42:29,678 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 109.1MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:42:29,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3270.03ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 111.2MB in the beginning and 154.2MB in the end (delta: -43.0MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2023-11-06 22:42:29,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 230.45ms. Allocated memory is still 220.2MB. Free memory was 154.2MB in the beginning and 141.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:42:29,679 INFO L158 Benchmark]: Boogie Preprocessor took 235.16ms. Allocated memory is still 220.2MB. Free memory was 141.6MB in the beginning and 132.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:42:29,679 INFO L158 Benchmark]: RCFGBuilder took 2670.11ms. Allocated memory is still 220.2MB. Free memory was 132.1MB in the beginning and 113.9MB in the end (delta: 18.3MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2023-11-06 22:42:29,680 INFO L158 Benchmark]: TraceAbstraction took 100798.51ms. Allocated memory was 220.2MB in the beginning and 685.8MB in the end (delta: 465.6MB). Free memory was 112.8MB in the beginning and 569.5MB in the end (delta: -456.7MB). Peak memory consumption was 378.8MB. Max. memory is 16.1GB. [2023-11-06 22:42:29,681 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 109.1MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3270.03ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 111.2MB in the beginning and 154.2MB in the end (delta: -43.0MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 230.45ms. Allocated memory is still 220.2MB. Free memory was 154.2MB in the beginning and 141.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 235.16ms. Allocated memory is still 220.2MB. Free memory was 141.6MB in the beginning and 132.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2670.11ms. Allocated memory is still 220.2MB. Free memory was 132.1MB in the beginning and 113.9MB in the end (delta: 18.3MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. * TraceAbstraction took 100798.51ms. Allocated memory was 220.2MB in the beginning and 685.8MB in the end (delta: 465.6MB). Free memory was 112.8MB in the beginning and 569.5MB in the end (delta: -456.7MB). Peak memory consumption was 378.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7771]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:669) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-06 22:42:29,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP --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 12db216c7e0e1c5fdc67d2c719f53ace6d4be7de02773cc5c22d3000e76bff14 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:42:32,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:42:32,425 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-06 22:42:32,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:42:32,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:42:32,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:42:32,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:42:32,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:42:32,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:42:32,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:42:32,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:42:32,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:42:32,490 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:42:32,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:42:32,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:42:32,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:42:32,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:42:32,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:42:32,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:42:32,496 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:42:32,497 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:42:32,497 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:42:32,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:42:32,498 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:42:32,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:42:32,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:42:32,500 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:42:32,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:42:32,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:42:32,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:42:32,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:42:32,503 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:42:32,503 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:42:32,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:42:32,504 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:42:32,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:42:32,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:42:32,505 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:42:32,505 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:42:32,506 INFO L153 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_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12db216c7e0e1c5fdc67d2c719f53ace6d4be7de02773cc5c22d3000e76bff14 [2023-11-06 22:42:32,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:42:32,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:42:32,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:42:32,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:42:32,952 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:42:32,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i [2023-11-06 22:42:36,145 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:42:36,767 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:42:36,767 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i [2023-11-06 22:42:36,811 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/data/8989b9caf/0d9cc37f11ca4bf791ca4b5d4972e797/FLAG5406efdb9 [2023-11-06 22:42:36,828 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/data/8989b9caf/0d9cc37f11ca4bf791ca4b5d4972e797 [2023-11-06 22:42:36,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:42:36,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:42:36,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:36,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:42:36,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:42:36,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:36" (1/1) ... [2023-11-06 22:42:36,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0bd5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:36, skipping insertion in model container [2023-11-06 22:42:36,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:36" (1/1) ... [2023-11-06 22:42:37,016 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:42:37,339 WARN L240 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_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4497,4510] [2023-11-06 22:42:37,348 WARN L240 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_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4557,4570] [2023-11-06 22:42:38,437 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,444 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,445 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,446 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,447 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,471 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,472 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,475 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,476 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,478 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,480 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,483 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:38,483 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,019 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:42:39,020 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:42:39,022 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:42:39,023 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:42:39,025 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:42:39,025 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:42:39,026 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:42:39,027 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:42:39,028 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:42:39,029 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:42:39,253 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,281 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,373 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,375 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,375 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,376 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,376 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,377 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,378 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,380 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,380 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,381 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,384 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,385 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,386 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,390 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,391 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,391 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,392 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,401 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,403 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,425 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,428 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,429 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:39,515 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:42:39,595 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:42:39,600 WARN L240 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_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4497,4510] [2023-11-06 22:42:39,601 WARN L240 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_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4557,4570] [2023-11-06 22:42:39,662 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,670 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,671 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,672 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,673 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,684 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,685 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,687 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,688 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,689 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,690 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,692 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,692 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,746 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:42:39,747 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:42:39,749 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:42:39,750 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:42:39,751 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:42:39,751 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:42:39,752 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:42:39,753 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:42:39,754 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:42:39,754 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:42:39,806 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,811 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,862 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,863 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,863 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,864 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,864 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,865 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,865 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,866 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,866 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,866 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,867 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,867 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,867 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,868 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,868 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,869 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,869 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,871 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,872 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,877 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,878 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,879 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:39,900 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:42:39,913 WARN L240 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_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4497,4510] [2023-11-06 22:42:39,914 WARN L240 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_eed4cb11-5470-4f90-a4d2-091c5e375656/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4557,4570] [2023-11-06 22:42:39,944 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,945 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,945 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,946 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,946 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,952 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,952 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,953 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,953 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,954 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,955 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,955 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:39,956 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,023 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:42:40,023 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:42:40,024 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:42:40,025 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:42:40,025 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:42:40,026 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:42:40,026 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:42:40,027 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:42:40,027 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:42:40,028 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:42:40,057 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,061 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2023-11-06 22:42:40,083 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,083 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,084 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,084 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,084 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,084 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,085 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,085 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,086 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,086 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,086 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,087 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,087 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,088 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,088 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,088 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,089 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,091 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,091 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,096 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,097 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,097 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:42:40,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:40,451 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,452 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,452 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,452 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,452 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,452 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,453 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,453 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,453 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,453 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,453 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,453 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,453 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,454 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,454 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:42:40,470 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:42:40,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40 WrapperNode [2023-11-06 22:42:40,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:40,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:40,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:42:40,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:42:40,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,731 INFO L138 Inliner]: procedures = 716, calls = 1880, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1140 [2023-11-06 22:42:40,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:40,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:42:40,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:42:40,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:42:40,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,893 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:42:40,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:42:40,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:42:40,931 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:42:40,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:42:40,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:40,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:41,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:42:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-06 22:42:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-06 22:42:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2023-11-06 22:42:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2023-11-06 22:42:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-06 22:42:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-06 22:42:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:42:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-06 22:42:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-06 22:42:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-06 22:42:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-06 22:42:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-06 22:42:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-06 22:42:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:42:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 22:42:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2023-11-06 22:42:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-06 22:42:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-06 22:42:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-06 22:42:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-06 22:42:41,033 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-06 22:42:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-06 22:42:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:42:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:42:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-06 22:42:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-06 22:42:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:42:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:42:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:42:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-06 22:42:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-06 22:42:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-06 22:42:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-06 22:42:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:42:41,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:42:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-06 22:42:41,036 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-06 22:42:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 22:42:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-06 22:42:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-06 22:42:41,037 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-06 22:42:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-06 22:42:41,037 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-06 22:42:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-06 22:42:41,037 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-06 22:42:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-06 22:42:41,037 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-06 22:42:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-06 22:42:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-06 22:42:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:42:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:42:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:42:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:42:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-06 22:42:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-06 22:42:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-06 22:42:41,039 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-06 22:42:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-06 22:42:41,039 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-06 22:42:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:42:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-06 22:42:41,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-06 22:42:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:42:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 22:42:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:42:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-06 22:42:41,040 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-06 22:42:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-06 22:42:41,040 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-06 22:42:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-06 22:42:41,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-06 22:42:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-06 22:42:41,041 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-06 22:42:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-06 22:42:41,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-06 22:42:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2023-11-06 22:42:41,041 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2023-11-06 22:42:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-06 22:42:41,042 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-06 22:42:41,529 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:42:41,533 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:42:46,138 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:42:46,160 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:42:46,160 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-06 22:42:46,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:46 BoogieIcfgContainer [2023-11-06 22:42:46,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:42:46,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:42:46,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:42:46,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:42:46,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:42:36" (1/3) ... [2023-11-06 22:42:46,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3e1365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:42:46, skipping insertion in model container [2023-11-06 22:42:46,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (2/3) ... [2023-11-06 22:42:46,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3e1365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:42:46, skipping insertion in model container [2023-11-06 22:42:46,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:46" (3/3) ... [2023-11-06 22:42:46,176 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness_negated.i [2023-11-06 22:42:46,197 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:42:46,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:42:46,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:42:46,307 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;@6af204d8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:42:46,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 22:42:46,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 531 states, 301 states have (on average 1.2524916943521596) internal successors, (377), 304 states have internal predecessors, (377), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-06 22:42:46,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-06 22:42:46,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:46,366 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:46,367 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:46,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:46,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1141484020, now seen corresponding path program 1 times [2023-11-06 22:42:46,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:42:46,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992249589] [2023-11-06 22:42:46,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:46,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:46,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:42:46,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:42:46,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:42:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:47,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:42:47,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2023-11-06 22:42:47,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:42:47,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:42:47,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992249589] [2023-11-06 22:42:47,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992249589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:47,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:47,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:42:47,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985156513] [2023-11-06 22:42:47,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:47,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:42:47,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:42:47,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:42:47,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:42:47,509 INFO L87 Difference]: Start difference. First operand has 531 states, 301 states have (on average 1.2524916943521596) internal successors, (377), 304 states have internal predecessors, (377), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-06 22:42:47,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:47,631 INFO L93 Difference]: Finished difference Result 1049 states and 1661 transitions. [2023-11-06 22:42:47,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:42:47,633 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2023-11-06 22:42:47,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:47,665 INFO L225 Difference]: With dead ends: 1049 [2023-11-06 22:42:47,665 INFO L226 Difference]: Without dead ends: 524 [2023-11-06 22:42:47,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:42:47,684 INFO L413 NwaCegarLoop]: 759 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, 759 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 [2023-11-06 22:42:47,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:42:47,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-06 22:42:47,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2023-11-06 22:42:47,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 295 states have (on average 1.2338983050847459) internal successors, (364), 297 states have internal predecessors, (364), 196 states have call successors, (196), 32 states have call predecessors, (196), 31 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2023-11-06 22:42:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 754 transitions. [2023-11-06 22:42:47,839 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 754 transitions. Word has length 167 [2023-11-06 22:42:47,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:47,841 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 754 transitions. [2023-11-06 22:42:47,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-06 22:42:47,841 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 754 transitions. [2023-11-06 22:42:47,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-06 22:42:47,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:47,855 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:47,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:48,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:48,081 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:48,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:48,082 INFO L85 PathProgramCache]: Analyzing trace with hash -713909130, now seen corresponding path program 1 times [2023-11-06 22:42:48,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:42:48,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004604536] [2023-11-06 22:42:48,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:48,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:48,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:42:48,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:42:48,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:42:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:49,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:42:49,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-11-06 22:42:49,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:42:49,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:42:49,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004604536] [2023-11-06 22:42:49,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004604536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:49,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:49,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:42:49,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106743369] [2023-11-06 22:42:49,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:49,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:42:49,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:42:49,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:42:49,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:42:49,280 INFO L87 Difference]: Start difference. First operand 524 states and 754 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-06 22:42:49,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:49,743 INFO L93 Difference]: Finished difference Result 1017 states and 1476 transitions. [2023-11-06 22:42:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:42:49,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 167 [2023-11-06 22:42:49,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:49,754 INFO L225 Difference]: With dead ends: 1017 [2023-11-06 22:42:49,754 INFO L226 Difference]: Without dead ends: 526 [2023-11-06 22:42:49,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:42:49,759 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 83 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:42:49,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2791 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:42:49,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-11-06 22:42:49,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-11-06 22:42:49,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 296 states have (on average 1.2331081081081081) internal successors, (365), 299 states have internal predecessors, (365), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (204), 194 states have call predecessors, (204), 194 states have call successors, (204) [2023-11-06 22:42:49,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 765 transitions. [2023-11-06 22:42:49,861 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 765 transitions. Word has length 167 [2023-11-06 22:42:49,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:49,863 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 765 transitions. [2023-11-06 22:42:49,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-06 22:42:49,864 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 765 transitions. [2023-11-06 22:42:49,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-06 22:42:49,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:49,868 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 3, 3, 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] [2023-11-06 22:42:49,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-06 22:42:50,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:50,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:50,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:50,085 INFO L85 PathProgramCache]: Analyzing trace with hash 997809179, now seen corresponding path program 1 times [2023-11-06 22:42:50,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:42:50,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263728937] [2023-11-06 22:42:50,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:50,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:50,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:42:50,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:42:50,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:42:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:51,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:42:51,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:51,332 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-11-06 22:42:51,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:42:51,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:42:51,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263728937] [2023-11-06 22:42:51,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263728937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:51,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:51,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:42:51,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446781314] [2023-11-06 22:42:51,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:51,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:42:51,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:42:51,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:42:51,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:42:51,337 INFO L87 Difference]: Start difference. First operand 526 states and 765 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-06 22:42:52,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:52,938 INFO L93 Difference]: Finished difference Result 1040 states and 1556 transitions. [2023-11-06 22:42:52,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:42:52,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 175 [2023-11-06 22:42:52,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:52,946 INFO L225 Difference]: With dead ends: 1040 [2023-11-06 22:42:52,947 INFO L226 Difference]: Without dead ends: 547 [2023-11-06 22:42:52,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:42:52,956 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 134 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:42:52,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 3972 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-06 22:42:52,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-11-06 22:42:53,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 545. [2023-11-06 22:42:53,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 312 states have (on average 1.2403846153846154) internal successors, (387), 315 states have internal predecessors, (387), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-06 22:42:53,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 823 transitions. [2023-11-06 22:42:53,027 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 823 transitions. Word has length 175 [2023-11-06 22:42:53,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:53,029 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 823 transitions. [2023-11-06 22:42:53,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-06 22:42:53,030 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 823 transitions. [2023-11-06 22:42:53,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-06 22:42:53,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:53,035 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 3, 3, 3, 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] [2023-11-06 22:42:53,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:53,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:53,261 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:53,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:53,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1390876472, now seen corresponding path program 1 times [2023-11-06 22:42:53,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:42:53,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519113426] [2023-11-06 22:42:53,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:53,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:53,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:42:53,265 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:42:53,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:42:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:54,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 1609 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:42:54,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:54,579 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-11-06 22:42:54,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:42:54,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:42:54,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519113426] [2023-11-06 22:42:54,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519113426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:54,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:54,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:42:54,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284982628] [2023-11-06 22:42:54,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:54,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:42:54,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:42:54,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:42:54,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:42:54,583 INFO L87 Difference]: Start difference. First operand 545 states and 823 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-06 22:42:55,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:55,238 INFO L93 Difference]: Finished difference Result 1063 states and 1627 transitions. [2023-11-06 22:42:55,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:42:55,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 190 [2023-11-06 22:42:55,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:55,246 INFO L225 Difference]: With dead ends: 1063 [2023-11-06 22:42:55,247 INFO L226 Difference]: Without dead ends: 551 [2023-11-06 22:42:55,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:42:55,252 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 102 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 3469 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:42:55,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 3469 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:42:55,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-06 22:42:55,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 545. [2023-11-06 22:42:55,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 312 states have (on average 1.2403846153846154) internal successors, (387), 315 states have internal predecessors, (387), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-06 22:42:55,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 823 transitions. [2023-11-06 22:42:55,311 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 823 transitions. Word has length 190 [2023-11-06 22:42:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:55,312 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 823 transitions. [2023-11-06 22:42:55,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-06 22:42:55,312 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 823 transitions. [2023-11-06 22:42:55,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-06 22:42:55,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:55,316 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 3, 3, 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] [2023-11-06 22:42:55,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:55,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:55,540 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:55,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:55,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2035248318, now seen corresponding path program 1 times [2023-11-06 22:42:55,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:42:55,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602782737] [2023-11-06 22:42:55,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:55,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:55,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:42:55,545 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:42:55,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 22:42:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:56,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:42:56,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-06 22:42:56,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:42:56,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:42:56,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602782737] [2023-11-06 22:42:56,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602782737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:56,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:56,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:42:56,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835903692] [2023-11-06 22:42:56,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:56,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:42:56,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:42:56,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:42:56,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:42:56,985 INFO L87 Difference]: Start difference. First operand 545 states and 823 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-06 22:42:59,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:59,081 INFO L93 Difference]: Finished difference Result 1089 states and 1665 transitions. [2023-11-06 22:42:59,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:42:59,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 206 [2023-11-06 22:42:59,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:59,089 INFO L225 Difference]: With dead ends: 1089 [2023-11-06 22:42:59,089 INFO L226 Difference]: Without dead ends: 577 [2023-11-06 22:42:59,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:42:59,094 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 153 mSDsluCounter, 3913 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:42:59,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 4605 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-06 22:42:59,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-11-06 22:42:59,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 545. [2023-11-06 22:42:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 312 states have (on average 1.2403846153846154) internal successors, (387), 315 states have internal predecessors, (387), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-06 22:42:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 823 transitions. [2023-11-06 22:42:59,141 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 823 transitions. Word has length 206 [2023-11-06 22:42:59,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:59,142 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 823 transitions. [2023-11-06 22:42:59,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-06 22:42:59,143 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 823 transitions. [2023-11-06 22:42:59,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-11-06 22:42:59,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:59,147 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:42:59,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:59,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:59,364 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:59,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:59,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1268324317, now seen corresponding path program 2 times [2023-11-06 22:42:59,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:42:59,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620495032] [2023-11-06 22:42:59,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:42:59,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:42:59,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:42:59,368 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:42:59,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 22:43:00,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:43:00,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:43:00,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:43:00,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-11-06 22:43:00,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:00,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:00,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620495032] [2023-11-06 22:43:00,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620495032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:00,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:00,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:43:00,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201446171] [2023-11-06 22:43:00,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:00,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:43:00,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:00,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:43:00,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:43:00,114 INFO L87 Difference]: Start difference. First operand 545 states and 823 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2023-11-06 22:43:00,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:00,310 INFO L93 Difference]: Finished difference Result 553 states and 831 transitions. [2023-11-06 22:43:00,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:43:00,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 221 [2023-11-06 22:43:00,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:00,317 INFO L225 Difference]: With dead ends: 553 [2023-11-06 22:43:00,318 INFO L226 Difference]: Without dead ends: 551 [2023-11-06 22:43:00,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:43:00,319 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 5 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3717 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:00,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3717 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:43:00,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-06 22:43:00,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 550. [2023-11-06 22:43:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 315 states have (on average 1.2380952380952381) internal successors, (390), 318 states have internal predecessors, (390), 199 states have call successors, (199), 33 states have call predecessors, (199), 34 states have return successors, (239), 198 states have call predecessors, (239), 197 states have call successors, (239) [2023-11-06 22:43:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 828 transitions. [2023-11-06 22:43:00,367 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 828 transitions. Word has length 221 [2023-11-06 22:43:00,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:00,369 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 828 transitions. [2023-11-06 22:43:00,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2023-11-06 22:43:00,369 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 828 transitions. [2023-11-06 22:43:00,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-06 22:43:00,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:00,378 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:43:00,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:00,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:00,592 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:00,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:00,593 INFO L85 PathProgramCache]: Analyzing trace with hash 497171420, now seen corresponding path program 3 times [2023-11-06 22:43:00,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:00,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18001417] [2023-11-06 22:43:00,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:43:00,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:00,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:00,596 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:00,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-06 22:43:02,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:43:02,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:43:02,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:43:02,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:02,898 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-06 22:43:02,898 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:43:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2023-11-06 22:43:03,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:03,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18001417] [2023-11-06 22:43:03,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18001417] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:43:03,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:43:03,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-06 22:43:03,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219511514] [2023-11-06 22:43:03,578 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:43:03,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:43:03,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:03,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:43:03,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:43:03,581 INFO L87 Difference]: Start difference. First operand 550 states and 828 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-06 22:43:05,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:05,036 INFO L93 Difference]: Finished difference Result 1049 states and 1599 transitions. [2023-11-06 22:43:05,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:43:05,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 236 [2023-11-06 22:43:05,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:05,043 INFO L225 Difference]: With dead ends: 1049 [2023-11-06 22:43:05,043 INFO L226 Difference]: Without dead ends: 558 [2023-11-06 22:43:05,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:43:05,056 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 36 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:05,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3465 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-06 22:43:05,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-06 22:43:05,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 555. [2023-11-06 22:43:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 318 states have (on average 1.2358490566037736) internal successors, (393), 320 states have internal predecessors, (393), 201 states have call successors, (201), 34 states have call predecessors, (201), 34 states have return successors, (241), 200 states have call predecessors, (241), 199 states have call successors, (241) [2023-11-06 22:43:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 835 transitions. [2023-11-06 22:43:05,104 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 835 transitions. Word has length 236 [2023-11-06 22:43:05,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:05,105 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 835 transitions. [2023-11-06 22:43:05,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-06 22:43:05,105 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 835 transitions. [2023-11-06 22:43:05,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-06 22:43:05,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:05,110 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-06 22:43:05,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:05,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:05,332 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:05,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:05,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1792066321, now seen corresponding path program 4 times [2023-11-06 22:43:05,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:05,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405960600] [2023-11-06 22:43:05,334 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:43:05,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:05,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:05,335 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:05,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-06 22:43:06,869 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:43:06,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:43:06,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 1993 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:43:06,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-11-06 22:43:07,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:07,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:07,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405960600] [2023-11-06 22:43:07,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405960600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:07,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:07,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:43:07,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138675579] [2023-11-06 22:43:07,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:07,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:43:07,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:07,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:43:07,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:43:07,546 INFO L87 Difference]: Start difference. First operand 555 states and 835 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-06 22:43:13,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:13,024 INFO L93 Difference]: Finished difference Result 1109 states and 1693 transitions. [2023-11-06 22:43:13,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:43:13,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 251 [2023-11-06 22:43:13,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:13,036 INFO L225 Difference]: With dead ends: 1109 [2023-11-06 22:43:13,036 INFO L226 Difference]: Without dead ends: 587 [2023-11-06 22:43:13,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:43:13,042 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 21 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:13,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3542 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-06 22:43:13,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-11-06 22:43:13,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 563. [2023-11-06 22:43:13,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 326 states have (on average 1.2361963190184049) internal successors, (403), 328 states have internal predecessors, (403), 201 states have call successors, (201), 34 states have call predecessors, (201), 34 states have return successors, (241), 200 states have call predecessors, (241), 199 states have call successors, (241) [2023-11-06 22:43:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 845 transitions. [2023-11-06 22:43:13,091 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 845 transitions. Word has length 251 [2023-11-06 22:43:13,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:13,092 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 845 transitions. [2023-11-06 22:43:13,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-06 22:43:13,092 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 845 transitions. [2023-11-06 22:43:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-06 22:43:13,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:13,098 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-06 22:43:13,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:13,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:13,320 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:13,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:13,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1179722029, now seen corresponding path program 1 times [2023-11-06 22:43:13,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:13,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79567629] [2023-11-06 22:43:13,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:13,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:13,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:13,323 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:13,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-06 22:43:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:14,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 1991 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:43:14,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:15,597 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-11-06 22:43:15,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:15,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:15,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79567629] [2023-11-06 22:43:15,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79567629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:15,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:15,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:43:15,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900114118] [2023-11-06 22:43:15,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:15,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:43:15,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:15,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:43:15,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:43:15,603 INFO L87 Difference]: Start difference. First operand 563 states and 845 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-06 22:43:21,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:21,104 INFO L93 Difference]: Finished difference Result 1119 states and 1703 transitions. [2023-11-06 22:43:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:43:21,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 251 [2023-11-06 22:43:21,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:21,119 INFO L225 Difference]: With dead ends: 1119 [2023-11-06 22:43:21,119 INFO L226 Difference]: Without dead ends: 589 [2023-11-06 22:43:21,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:43:21,127 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 18 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:21,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4288 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-06 22:43:21,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2023-11-06 22:43:21,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 567. [2023-11-06 22:43:21,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 330 states have (on average 1.2333333333333334) internal successors, (407), 332 states have internal predecessors, (407), 201 states have call successors, (201), 34 states have call predecessors, (201), 34 states have return successors, (241), 200 states have call predecessors, (241), 199 states have call successors, (241) [2023-11-06 22:43:21,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 849 transitions. [2023-11-06 22:43:21,213 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 849 transitions. Word has length 251 [2023-11-06 22:43:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:21,214 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 849 transitions. [2023-11-06 22:43:21,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-06 22:43:21,214 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 849 transitions. [2023-11-06 22:43:21,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-06 22:43:21,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:21,217 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-06 22:43:21,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:21,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:21,432 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:21,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:21,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1518009579, now seen corresponding path program 1 times [2023-11-06 22:43:21,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:21,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838466422] [2023-11-06 22:43:21,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:21,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:21,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:21,437 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:21,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-06 22:43:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:23,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 1988 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:43:23,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:23,239 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-11-06 22:43:23,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:23,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:23,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838466422] [2023-11-06 22:43:23,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838466422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:23,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:23,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:43:23,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062277412] [2023-11-06 22:43:23,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:23,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:43:23,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:23,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:43:23,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:43:23,246 INFO L87 Difference]: Start difference. First operand 567 states and 849 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-06 22:43:24,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:24,188 INFO L93 Difference]: Finished difference Result 1102 states and 1654 transitions. [2023-11-06 22:43:24,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:43:24,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 251 [2023-11-06 22:43:24,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:24,195 INFO L225 Difference]: With dead ends: 1102 [2023-11-06 22:43:24,196 INFO L226 Difference]: Without dead ends: 570 [2023-11-06 22:43:24,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:43:24,201 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 2 mSDsluCounter, 4138 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4844 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:24,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4844 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 22:43:24,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-11-06 22:43:24,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2023-11-06 22:43:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 332 states have (on average 1.2289156626506024) internal successors, (408), 335 states have internal predecessors, (408), 201 states have call successors, (201), 34 states have call predecessors, (201), 35 states have return successors, (242), 200 states have call predecessors, (242), 199 states have call successors, (242) [2023-11-06 22:43:24,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 851 transitions. [2023-11-06 22:43:24,245 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 851 transitions. Word has length 251 [2023-11-06 22:43:24,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:24,246 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 851 transitions. [2023-11-06 22:43:24,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-06 22:43:24,246 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 851 transitions. [2023-11-06 22:43:24,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-11-06 22:43:24,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:24,249 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-06 22:43:24,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:24,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:24,464 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:24,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:24,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1893483863, now seen corresponding path program 1 times [2023-11-06 22:43:24,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:24,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397349050] [2023-11-06 22:43:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:24,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:24,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:24,468 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:24,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-06 22:43:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:26,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 2014 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:43:26,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 287 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-06 22:43:26,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:26,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:26,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397349050] [2023-11-06 22:43:26,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397349050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:26,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:26,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:43:26,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705143839] [2023-11-06 22:43:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:26,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:43:26,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:43:26,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:43:26,426 INFO L87 Difference]: Start difference. First operand 570 states and 851 transitions. Second operand has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 4 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) [2023-11-06 22:43:27,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:27,012 INFO L93 Difference]: Finished difference Result 1101 states and 1655 transitions. [2023-11-06 22:43:27,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:43:27,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 4 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) Word has length 262 [2023-11-06 22:43:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:27,021 INFO L225 Difference]: With dead ends: 1101 [2023-11-06 22:43:27,021 INFO L226 Difference]: Without dead ends: 572 [2023-11-06 22:43:27,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:43:27,026 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 131 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:27,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 3436 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:43:27,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-11-06 22:43:27,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2023-11-06 22:43:27,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 333 states have (on average 1.2282282282282282) internal successors, (409), 337 states have internal predecessors, (409), 201 states have call successors, (201), 34 states have call predecessors, (201), 36 states have return successors, (250), 200 states have call predecessors, (250), 199 states have call successors, (250) [2023-11-06 22:43:27,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 860 transitions. [2023-11-06 22:43:27,075 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 860 transitions. Word has length 262 [2023-11-06 22:43:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:27,075 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 860 transitions. [2023-11-06 22:43:27,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 4 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) [2023-11-06 22:43:27,076 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 860 transitions. [2023-11-06 22:43:27,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-06 22:43:27,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:27,079 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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] [2023-11-06 22:43:27,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:27,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:27,292 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:27,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:27,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1444008284, now seen corresponding path program 1 times [2023-11-06 22:43:27,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:27,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227477103] [2023-11-06 22:43:27,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:27,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:27,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:27,296 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:27,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-06 22:43:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:29,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 2044 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:43:29,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:29,424 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-11-06 22:43:29,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:29,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:29,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227477103] [2023-11-06 22:43:29,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227477103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:29,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:29,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:43:29,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043222684] [2023-11-06 22:43:29,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:29,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:43:29,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:29,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:43:29,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:43:29,428 INFO L87 Difference]: Start difference. First operand 572 states and 860 transitions. Second operand has 8 states, 7 states have (on average 16.0) internal successors, (112), 8 states have internal predecessors, (112), 5 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 4 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-06 22:43:31,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:31,209 INFO L93 Difference]: Finished difference Result 1125 states and 1700 transitions. [2023-11-06 22:43:31,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:43:31,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.0) internal successors, (112), 8 states have internal predecessors, (112), 5 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 4 states have call predecessors, (34), 5 states have call successors, (34) Word has length 270 [2023-11-06 22:43:31,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:31,217 INFO L225 Difference]: With dead ends: 1125 [2023-11-06 22:43:31,218 INFO L226 Difference]: Without dead ends: 594 [2023-11-06 22:43:31,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:43:31,224 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 166 mSDsluCounter, 3952 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 4664 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:31,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 4664 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-06 22:43:31,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-11-06 22:43:31,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 592. [2023-11-06 22:43:31,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 352 states have (on average 1.2329545454545454) internal successors, (434), 355 states have internal predecessors, (434), 202 states have call successors, (202), 34 states have call predecessors, (202), 36 states have return successors, (251), 202 states have call predecessors, (251), 200 states have call successors, (251) [2023-11-06 22:43:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 887 transitions. [2023-11-06 22:43:31,280 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 887 transitions. Word has length 270 [2023-11-06 22:43:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:31,281 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 887 transitions. [2023-11-06 22:43:31,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.0) internal successors, (112), 8 states have internal predecessors, (112), 5 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 4 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-06 22:43:31,281 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 887 transitions. [2023-11-06 22:43:31,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-06 22:43:31,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:31,285 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 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] [2023-11-06 22:43:31,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:31,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:31,499 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:31,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:31,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1979141979, now seen corresponding path program 2 times [2023-11-06 22:43:31,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:31,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733916478] [2023-11-06 22:43:31,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:43:31,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:31,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:31,503 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:31,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-06 22:43:35,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:43:35,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:43:35,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 2156 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:43:35,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-11-06 22:43:35,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:35,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:35,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733916478] [2023-11-06 22:43:35,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733916478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:35,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:35,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:43:35,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336284234] [2023-11-06 22:43:35,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:35,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:43:35,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:35,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:43:35,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:43:35,688 INFO L87 Difference]: Start difference. First operand 592 states and 887 transitions. Second operand has 7 states, 6 states have (on average 18.166666666666668) internal successors, (109), 7 states have internal predecessors, (109), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-06 22:43:36,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:36,502 INFO L93 Difference]: Finished difference Result 1149 states and 1738 transitions. [2023-11-06 22:43:36,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:43:36,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.166666666666668) internal successors, (109), 7 states have internal predecessors, (109), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 5 states have call successors, (34) Word has length 285 [2023-11-06 22:43:36,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:36,509 INFO L225 Difference]: With dead ends: 1149 [2023-11-06 22:43:36,510 INFO L226 Difference]: Without dead ends: 598 [2023-11-06 22:43:36,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:43:36,514 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 150 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 4104 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:36,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 4104 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:43:36,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2023-11-06 22:43:36,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 592. [2023-11-06 22:43:36,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 352 states have (on average 1.2329545454545454) internal successors, (434), 355 states have internal predecessors, (434), 202 states have call successors, (202), 34 states have call predecessors, (202), 36 states have return successors, (251), 202 states have call predecessors, (251), 200 states have call successors, (251) [2023-11-06 22:43:36,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 887 transitions. [2023-11-06 22:43:36,562 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 887 transitions. Word has length 285 [2023-11-06 22:43:36,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:36,563 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 887 transitions. [2023-11-06 22:43:36,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.166666666666668) internal successors, (109), 7 states have internal predecessors, (109), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-06 22:43:36,564 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 887 transitions. [2023-11-06 22:43:36,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-11-06 22:43:36,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:36,567 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:43:36,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:36,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:36,780 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:36,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:36,781 INFO L85 PathProgramCache]: Analyzing trace with hash -160237985, now seen corresponding path program 2 times [2023-11-06 22:43:36,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:36,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419343034] [2023-11-06 22:43:36,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:43:36,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:36,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:36,784 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:36,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-06 22:43:40,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:43:40,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:43:40,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 2199 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:43:40,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:40,681 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2023-11-06 22:43:40,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:40,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:40,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419343034] [2023-11-06 22:43:40,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419343034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:40,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:40,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:43:40,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888402391] [2023-11-06 22:43:40,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:40,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:43:40,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:40,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:43:40,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:43:40,685 INFO L87 Difference]: Start difference. First operand 592 states and 887 transitions. Second operand has 9 states, 8 states have (on average 15.375) internal successors, (123), 9 states have internal predecessors, (123), 6 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 6 states have call successors, (35) [2023-11-06 22:43:42,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:42,814 INFO L93 Difference]: Finished difference Result 1165 states and 1752 transitions. [2023-11-06 22:43:42,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:43:42,815 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.375) internal successors, (123), 9 states have internal predecessors, (123), 6 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 6 states have call successors, (35) Word has length 301 [2023-11-06 22:43:42,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:42,822 INFO L225 Difference]: With dead ends: 1165 [2023-11-06 22:43:42,822 INFO L226 Difference]: Without dead ends: 614 [2023-11-06 22:43:42,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:43:42,827 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 201 mSDsluCounter, 4512 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 5201 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:42,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 5201 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-06 22:43:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-11-06 22:43:42,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 570. [2023-11-06 22:43:42,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 332 states have (on average 1.2289156626506024) internal successors, (408), 335 states have internal predecessors, (408), 201 states have call successors, (201), 34 states have call predecessors, (201), 35 states have return successors, (240), 200 states have call predecessors, (240), 199 states have call successors, (240) [2023-11-06 22:43:42,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 849 transitions. [2023-11-06 22:43:42,874 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 849 transitions. Word has length 301 [2023-11-06 22:43:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:42,875 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 849 transitions. [2023-11-06 22:43:42,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.375) internal successors, (123), 9 states have internal predecessors, (123), 6 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 6 states have call successors, (35) [2023-11-06 22:43:42,875 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 849 transitions. [2023-11-06 22:43:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-11-06 22:43:42,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:42,879 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:43:42,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:43,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:43,100 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:43,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash 698004576, now seen corresponding path program 3 times [2023-11-06 22:43:43,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:43,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943356915] [2023-11-06 22:43:43,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:43:43,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:43,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:43,104 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:43,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-06 22:43:48,545 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 22:43:48,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:43:48,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-06 22:43:48,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 57 proven. 5 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2023-11-06 22:43:49,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:43:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2023-11-06 22:43:49,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:49,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943356915] [2023-11-06 22:43:49,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943356915] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:43:49,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:43:49,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 10 [2023-11-06 22:43:49,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627475168] [2023-11-06 22:43:49,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:43:49,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:43:49,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:49,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:43:49,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:43:49,759 INFO L87 Difference]: Start difference. First operand 570 states and 849 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 9 states have internal predecessors, (97), 5 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-06 22:43:51,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:51,552 INFO L93 Difference]: Finished difference Result 1120 states and 1677 transitions. [2023-11-06 22:43:51,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:43:51,553 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 9 states have internal predecessors, (97), 5 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) Word has length 316 [2023-11-06 22:43:51,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:51,560 INFO L225 Difference]: With dead ends: 1120 [2023-11-06 22:43:51,560 INFO L226 Difference]: Without dead ends: 609 [2023-11-06 22:43:51,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:43:51,567 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 52 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 4198 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:51,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 4198 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-06 22:43:51,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2023-11-06 22:43:51,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 597. [2023-11-06 22:43:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 347 states have (on average 1.2334293948126802) internal successors, (428), 351 states have internal predecessors, (428), 212 states have call successors, (212), 35 states have call predecessors, (212), 36 states have return successors, (251), 210 states have call predecessors, (251), 210 states have call successors, (251) [2023-11-06 22:43:51,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 891 transitions. [2023-11-06 22:43:51,625 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 891 transitions. Word has length 316 [2023-11-06 22:43:51,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:51,626 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 891 transitions. [2023-11-06 22:43:51,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 9 states have internal predecessors, (97), 5 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-06 22:43:51,627 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 891 transitions. [2023-11-06 22:43:51,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-11-06 22:43:51,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:51,630 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:43:51,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:51,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:51,844 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:51,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:51,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1759961943, now seen corresponding path program 1 times [2023-11-06 22:43:51,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:51,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463520334] [2023-11-06 22:43:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:51,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:51,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:51,848 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:51,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-06 22:43:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:54,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 2423 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:43:54,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:54,603 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 426 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-06 22:43:54,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:54,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:54,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463520334] [2023-11-06 22:43:54,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463520334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:54,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:54,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:43:54,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637010347] [2023-11-06 22:43:54,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:54,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:43:54,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:54,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:43:54,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:43:54,607 INFO L87 Difference]: Start difference. First operand 597 states and 891 transitions. Second operand has 7 states, 6 states have (on average 17.0) internal successors, (102), 7 states have internal predecessors, (102), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-06 22:43:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:55,241 INFO L93 Difference]: Finished difference Result 1149 states and 1723 transitions. [2023-11-06 22:43:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:43:55,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.0) internal successors, (102), 7 states have internal predecessors, (102), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 5 states have call successors, (33) Word has length 331 [2023-11-06 22:43:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:55,248 INFO L225 Difference]: With dead ends: 1149 [2023-11-06 22:43:55,249 INFO L226 Difference]: Without dead ends: 599 [2023-11-06 22:43:55,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:43:55,253 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 175 mSDsluCounter, 3353 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 4079 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:55,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 4079 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:43:55,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-11-06 22:43:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2023-11-06 22:43:55,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 348 states have (on average 1.2327586206896552) internal successors, (429), 353 states have internal predecessors, (429), 212 states have call successors, (212), 35 states have call predecessors, (212), 37 states have return successors, (255), 210 states have call predecessors, (255), 210 states have call successors, (255) [2023-11-06 22:43:55,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 896 transitions. [2023-11-06 22:43:55,302 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 896 transitions. Word has length 331 [2023-11-06 22:43:55,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:55,303 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 896 transitions. [2023-11-06 22:43:55,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.0) internal successors, (102), 7 states have internal predecessors, (102), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 4 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-06 22:43:55,303 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 896 transitions. [2023-11-06 22:43:55,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-06 22:43:55,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:55,307 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 22:43:55,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:55,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:55,528 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:55,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:55,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1155684421, now seen corresponding path program 1 times [2023-11-06 22:43:55,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:55,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163368296] [2023-11-06 22:43:55,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:55,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:55,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:55,532 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:55,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-06 22:43:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 2565 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:43:58,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:58,658 INFO L134 CoverageAnalysis]: Checked inductivity of 947 backedges. 491 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2023-11-06 22:43:58,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:58,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:43:58,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163368296] [2023-11-06 22:43:58,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163368296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:58,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:58,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:43:58,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674125547] [2023-11-06 22:43:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:58,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:43:58,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:43:58,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:43:58,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:43:58,662 INFO L87 Difference]: Start difference. First operand 599 states and 896 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 6 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-06 22:43:59,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:59,598 INFO L93 Difference]: Finished difference Result 1154 states and 1734 transitions. [2023-11-06 22:43:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:43:59,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 6 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) Word has length 354 [2023-11-06 22:43:59,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:59,604 INFO L225 Difference]: With dead ends: 1154 [2023-11-06 22:43:59,604 INFO L226 Difference]: Without dead ends: 602 [2023-11-06 22:43:59,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:43:59,608 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 194 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:59,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 4734 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:43:59,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-11-06 22:43:59,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 600. [2023-11-06 22:43:59,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 349 states have (on average 1.2320916905444126) internal successors, (430), 354 states have internal predecessors, (430), 212 states have call successors, (212), 35 states have call predecessors, (212), 37 states have return successors, (255), 210 states have call predecessors, (255), 210 states have call successors, (255) [2023-11-06 22:43:59,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 897 transitions. [2023-11-06 22:43:59,687 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 897 transitions. Word has length 354 [2023-11-06 22:43:59,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:59,689 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 897 transitions. [2023-11-06 22:43:59,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 6 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-06 22:43:59,690 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 897 transitions. [2023-11-06 22:43:59,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-06 22:43:59,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:59,698 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-06 22:43:59,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:59,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:59,920 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:59,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:59,921 INFO L85 PathProgramCache]: Analyzing trace with hash 826673428, now seen corresponding path program 1 times [2023-11-06 22:43:59,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:43:59,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184644783] [2023-11-06 22:43:59,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:59,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:43:59,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:43:59,925 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:43:59,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eed4cb11-5470-4f90-a4d2-091c5e375656/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process