./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5d9c9690ebf4d597a96d56bea07230a5398e6c36b9eab0d2fba1dbd8091088b4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:24:23,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:24:23,948 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 19:24:23,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:24:23,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:24:23,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:24:23,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:24:23,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:24:23,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:24:23,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:24:23,991 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:24:23,992 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:24:23,992 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:24:23,993 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:24:23,993 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:24:23,993 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:24:23,994 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:24:23,994 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:24:23,995 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:24:23,995 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:24:23,996 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:24:23,996 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:24:23,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:24:23,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:24:23,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:24:23,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:24:23,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:24:23,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:24:24,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:24:24,000 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:24:24,000 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:24:24,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:24:24,001 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:24:24,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:24:24,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:24:24,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:24:24,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:24:24,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:24:24,004 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:24:24,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:24:24,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:24:24,005 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:24:24,005 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:24:24,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:24:24,006 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d9c9690ebf4d597a96d56bea07230a5398e6c36b9eab0d2fba1dbd8091088b4 [2023-12-02 19:24:24,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:24:24,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:24:24,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:24:24,273 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:24:24,273 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:24:24,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i [2023-12-02 19:24:27,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:24:27,391 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:24:27,392 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i [2023-12-02 19:24:27,419 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/data/d44404e80/b388d87af2d240ffa6b37ddb5664f1b8/FLAGf8c27b35d [2023-12-02 19:24:27,433 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/data/d44404e80/b388d87af2d240ffa6b37ddb5664f1b8 [2023-12-02 19:24:27,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:24:27,437 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:24:27,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:24:27,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:24:27,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:24:27,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:24:27" (1/1) ... [2023-12-02 19:24:27,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d0d280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:27, skipping insertion in model container [2023-12-02 19:24:27,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:24:27" (1/1) ... [2023-12-02 19:24:27,525 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:24:27,779 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_77918582-f431-4499-8a6b-e3e65bee971d/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i[4493,4506] [2023-12-02 19:24:27,784 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_77918582-f431-4499-8a6b-e3e65bee971d/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i[4553,4566] [2023-12-02 19:24:28,493 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,494 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,494 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,495 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,496 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,506 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,506 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,508 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,509 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,511 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,512 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,513 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,513 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:28,855 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 19:24:28,856 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 19:24:28,857 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 19:24:28,859 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 19:24:28,860 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 19:24:28,861 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 19:24:28,862 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 19:24:28,862 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 19:24:28,863 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 19:24:28,864 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 19:24:29,021 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,030 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:24:29,129 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:24:29,144 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_77918582-f431-4499-8a6b-e3e65bee971d/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i[4493,4506] [2023-12-02 19:24:29,144 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_77918582-f431-4499-8a6b-e3e65bee971d/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness_negated.i[4553,4566] [2023-12-02 19:24:29,200 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,201 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,201 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,202 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,203 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,211 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,211 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,213 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,213 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,215 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,215 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,216 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,216 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,257 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 19:24:29,258 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 19:24:29,259 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 19:24:29,260 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 19:24:29,261 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 19:24:29,261 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 19:24:29,262 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 19:24:29,262 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 19:24:29,263 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 19:24:29,263 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 19:24:29,293 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,299 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:24:29,306 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7737-7748] [2023-12-02 19:24:29,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:24:29,613 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,613 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,613 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,613 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,613 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,613 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,613 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,614 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,614 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,614 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,614 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,614 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,614 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,614 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,614 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:24:29,622 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:24:29,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29 WrapperNode [2023-12-02 19:24:29,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:24:29,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:24:29,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:24:29,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:24:29,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,819 INFO L138 Inliner]: procedures = 690, calls = 1684, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 657 [2023-12-02 19:24:29,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:24:29,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:24:29,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:24:29,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:24:29,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:24:29,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:24:29,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:24:29,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:24:29,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (1/1) ... [2023-12-02 19:24:29,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:24:29,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:24:29,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:24:29,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:24:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:24:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-12-02 19:24:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-12-02 19:24:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-12-02 19:24:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-12-02 19:24:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 19:24:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 19:24:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:24:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-12-02 19:24:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-12-02 19:24:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 19:24:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 19:24:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 19:24:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:24:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 19:24:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-12-02 19:24:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-12-02 19:24:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:24:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:24:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 19:24:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 19:24:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-12-02 19:24:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-12-02 19:24:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2023-12-02 19:24:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2023-12-02 19:24:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-12-02 19:24:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-12-02 19:24:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-12-02 19:24:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-12-02 19:24:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-12-02 19:24:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-12-02 19:24:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:24:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:24:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-12-02 19:24:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-12-02 19:24:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:24:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 19:24:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 19:24:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-12-02 19:24:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-12-02 19:24:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-12-02 19:24:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-12-02 19:24:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:24:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-12-02 19:24:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-12-02 19:24:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:24:30,292 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:24:30,294 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:24:30,993 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:24:31,125 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:24:31,125 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:24:31,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:24:31 BoogieIcfgContainer [2023-12-02 19:24:31,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:24:31,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:24:31,129 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:24:31,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:24:31,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:24:27" (1/3) ... [2023-12-02 19:24:31,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f5ab21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:24:31, skipping insertion in model container [2023-12-02 19:24:31,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:24:29" (2/3) ... [2023-12-02 19:24:31,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f5ab21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:24:31, skipping insertion in model container [2023-12-02 19:24:31,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:24:31" (3/3) ... [2023-12-02 19:24:31,133 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness_negated.i [2023-12-02 19:24:31,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:24:31,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:24:31,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:24:31,196 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@965d649, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:24:31,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:24:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 81 states have (on average 1.1728395061728396) internal successors, (95), 82 states have internal predecessors, (95), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-02 19:24:31,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 19:24:31,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:24:31,212 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:24:31,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:24:31,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:24:31,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2060268781, now seen corresponding path program 1 times [2023-12-02 19:24:31,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:24:31,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629927251] [2023-12-02 19:24:31,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:24:31,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:24:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:24:31,924 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-12-02 19:24:31,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:24:31,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629927251] [2023-12-02 19:24:31,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629927251] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:24:31,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340182157] [2023-12-02 19:24:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:24:31,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:24:31,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:24:31,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:24:31,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:24:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:24:32,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 2214 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 19:24:32,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:24:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-02 19:24:32,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:24:32,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340182157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:24:32,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:24:32,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-12-02 19:24:32,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292884674] [2023-12-02 19:24:32,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:24:32,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:24:32,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:24:32,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:24:32,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:24:32,611 INFO L87 Difference]: Start difference. First operand has 155 states, 81 states have (on average 1.1728395061728396) internal successors, (95), 82 states have internal predecessors, (95), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-02 19:24:33,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:24:33,060 INFO L93 Difference]: Finished difference Result 287 states and 401 transitions. [2023-12-02 19:24:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:24:33,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 99 [2023-12-02 19:24:33,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:24:33,074 INFO L225 Difference]: With dead ends: 287 [2023-12-02 19:24:33,074 INFO L226 Difference]: Without dead ends: 151 [2023-12-02 19:24:33,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-02 19:24:33,082 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 41 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:24:33,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 590 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:24:33,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-12-02 19:24:33,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-12-02 19:24:33,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 78 states have (on average 1.1282051282051282) internal successors, (88), 80 states have internal predecessors, (88), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2023-12-02 19:24:33,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 201 transitions. [2023-12-02 19:24:33,143 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 201 transitions. Word has length 99 [2023-12-02 19:24:33,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:24:33,143 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 201 transitions. [2023-12-02 19:24:33,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-02 19:24:33,144 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 201 transitions. [2023-12-02 19:24:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 19:24:33,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:24:33,149 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:24:33,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:24:33,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 19:24:33,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:24:33,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:24:33,360 INFO L85 PathProgramCache]: Analyzing trace with hash 97632969, now seen corresponding path program 1 times [2023-12-02 19:24:33,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:24:33,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339702177] [2023-12-02 19:24:33,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:24:33,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:24:33,463 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:24:33,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683437101] [2023-12-02 19:24:33,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:24:33,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:24:33,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:24:33,465 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:24:33,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:24:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:24:34,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 2478 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 19:24:34,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:24:34,161 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-12-02 19:24:34,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:24:34,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:24:34,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339702177] [2023-12-02 19:24:34,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:24:34,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683437101] [2023-12-02 19:24:34,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683437101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:24:34,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:24:34,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:24:34,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882739063] [2023-12-02 19:24:34,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:24:34,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:24:34,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:24:34,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:24:34,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:24:34,167 INFO L87 Difference]: Start difference. First operand 151 states and 201 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-12-02 19:24:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:24:34,546 INFO L93 Difference]: Finished difference Result 242 states and 322 transitions. [2023-12-02 19:24:34,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:24:34,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 117 [2023-12-02 19:24:34,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:24:34,554 INFO L225 Difference]: With dead ends: 242 [2023-12-02 19:24:34,555 INFO L226 Difference]: Without dead ends: 151 [2023-12-02 19:24:34,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:24:34,558 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 40 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:24:34,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 698 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:24:34,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-12-02 19:24:34,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-12-02 19:24:34,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 78 states have (on average 1.1282051282051282) internal successors, (88), 80 states have internal predecessors, (88), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2023-12-02 19:24:34,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 198 transitions. [2023-12-02 19:24:34,578 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 198 transitions. Word has length 117 [2023-12-02 19:24:34,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:24:34,579 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 198 transitions. [2023-12-02 19:24:34,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-12-02 19:24:34,580 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 198 transitions. [2023-12-02 19:24:34,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-02 19:24:34,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:24:34,582 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-02 19:24:34,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:24:34,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-02 19:24:34,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:24:34,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:24:34,790 INFO L85 PathProgramCache]: Analyzing trace with hash 2067758194, now seen corresponding path program 2 times [2023-12-02 19:24:34,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:24:34,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549537953] [2023-12-02 19:24:34,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:24:34,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:24:34,906 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:24:34,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181388545] [2023-12-02 19:24:34,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 19:24:34,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:24:34,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:24:34,908 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:24:34,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:24:35,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 19:24:35,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 19:24:35,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 1793 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 19:24:35,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:24:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-12-02 19:24:35,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:24:35,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:24:35,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549537953] [2023-12-02 19:24:35,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:24:35,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181388545] [2023-12-02 19:24:35,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181388545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:24:35,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:24:35,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:24:35,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504513817] [2023-12-02 19:24:35,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:24:35,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:24:35,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:24:35,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:24:35,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:24:35,427 INFO L87 Difference]: Start difference. First operand 151 states and 198 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 19:24:35,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:24:35,859 INFO L93 Difference]: Finished difference Result 159 states and 206 transitions. [2023-12-02 19:24:35,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:24:35,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 126 [2023-12-02 19:24:35,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:24:35,863 INFO L225 Difference]: With dead ends: 159 [2023-12-02 19:24:35,863 INFO L226 Difference]: Without dead ends: 157 [2023-12-02 19:24:35,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:24:35,865 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 5 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:24:35,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 848 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:24:35,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-12-02 19:24:35,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2023-12-02 19:24:35,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 81 states have (on average 1.123456790123457) internal successors, (91), 83 states have internal predecessors, (91), 56 states have call successors, (56), 18 states have call predecessors, (56), 18 states have return successors, (56), 54 states have call predecessors, (56), 54 states have call successors, (56) [2023-12-02 19:24:35,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 203 transitions. [2023-12-02 19:24:35,884 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 203 transitions. Word has length 126 [2023-12-02 19:24:35,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:24:35,885 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 203 transitions. [2023-12-02 19:24:35,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 19:24:35,886 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 203 transitions. [2023-12-02 19:24:35,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 19:24:35,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:24:35,889 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:24:35,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 19:24:36,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-12-02 19:24:36,089 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:24:36,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:24:36,090 INFO L85 PathProgramCache]: Analyzing trace with hash -2078120617, now seen corresponding path program 3 times [2023-12-02 19:24:36,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:24:36,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253123988] [2023-12-02 19:24:36,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:24:36,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:24:36,188 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:24:36,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198246172] [2023-12-02 19:24:36,189 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 19:24:36,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:24:36,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:24:36,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:24:36,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:24:36,741 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 19:24:36,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 19:24:36,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 2742 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 19:24:36,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:24:36,879 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-02 19:24:36,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:24:36,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:24:36,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253123988] [2023-12-02 19:24:36,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:24:36,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198246172] [2023-12-02 19:24:36,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198246172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:24:36,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:24:36,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 19:24:36,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107290168] [2023-12-02 19:24:36,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:24:36,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 19:24:36,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:24:36,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 19:24:36,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:24:36,882 INFO L87 Difference]: Start difference. First operand 156 states and 203 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-12-02 19:24:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:24:37,399 INFO L93 Difference]: Finished difference Result 242 states and 316 transitions. [2023-12-02 19:24:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:24:37,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 135 [2023-12-02 19:24:37,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:24:37,402 INFO L225 Difference]: With dead ends: 242 [2023-12-02 19:24:37,402 INFO L226 Difference]: Without dead ends: 149 [2023-12-02 19:24:37,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-02 19:24:37,404 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 44 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:24:37,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 985 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:24:37,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-02 19:24:37,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-12-02 19:24:37,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 78 states have internal predecessors, (86), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-02 19:24:37,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 194 transitions. [2023-12-02 19:24:37,419 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 194 transitions. Word has length 135 [2023-12-02 19:24:37,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:24:37,420 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 194 transitions. [2023-12-02 19:24:37,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-12-02 19:24:37,420 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 194 transitions. [2023-12-02 19:24:37,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-02 19:24:37,422 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:24:37,423 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:24:37,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 19:24:37,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-02 19:24:37,623 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:24:37,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:24:37,624 INFO L85 PathProgramCache]: Analyzing trace with hash -852703034, now seen corresponding path program 1 times [2023-12-02 19:24:37,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:24:37,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507909575] [2023-12-02 19:24:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:24:37,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:24:37,709 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:24:37,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1744455363] [2023-12-02 19:24:37,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:24:37,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:24:37,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:24:37,710 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:24:37,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77918582-f431-4499-8a6b-e3e65bee971d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 19:24:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:24:38,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 2874 conjuncts, 65 conjunts are in the unsatisfiable core [2023-12-02 19:24:38,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:24:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 118 proven. 14 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-02 19:24:38,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:24:39,031 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2023-12-02 19:24:39,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:24:39,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507909575] [2023-12-02 19:24:39,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:24:39,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744455363] [2023-12-02 19:24:39,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744455363] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:24:39,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1396167010] [2023-12-02 19:24:39,057 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2023-12-02 19:24:39,057 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:24:39,061 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:24:39,066 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:24:39,067 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:32:03,760 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_size_t with input of size 36 for LOIs [2023-12-02 19:32:03,764 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 40 for LOIs [2023-12-02 19:32:04,136 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 92 for LOIs [2023-12-02 19:32:04,350 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 75 for LOIs [2023-12-02 19:32:04,362 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2152 for LOIs [2023-12-02 19:32:14,689 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2228 for LOIs [2023-12-02 19:33:22,350 WARN L293 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 2197 DAG size of output: 2177 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 19:35:18,191 WARN L293 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 2276 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:35:23,628 WARN L293 SmtUtils]: Spent 5.41s on a formula simplification that was a NOOP. DAG size: 2276 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:36:05,260 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 2280 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:36:05,273 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 38 for LOIs [2023-12-02 19:36:05,278 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 36 for LOIs [2023-12-02 19:36:05,281 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_malloc with input of size 81 for LOIs [2023-12-02 19:36:05,478 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_bool with input of size 75 for LOIs [2023-12-02 19:36:05,498 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:37:31,824 WARN L293 SmtUtils]: Spent 1.40m on a formula simplification. DAG size of input: 2147 DAG size of output: 2145 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:39:17,403 WARN L293 SmtUtils]: Spent 1.72m on a formula simplification. DAG size of input: 2152 DAG size of output: 2150 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)