./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:04:47,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:04:47,744 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 18:04:47,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:04:47,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:04:47,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:04:47,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:04:47,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:04:47,796 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:04:47,796 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:04:47,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:04:47,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:04:47,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:04:47,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:04:47,802 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:04:47,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:04:47,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:04:47,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:04:47,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:04:47,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:04:47,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:04:47,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:04:47,806 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:04:47,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:04:47,806 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:04:47,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:04:47,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:04:47,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:04:47,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:04:47,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:04:47,808 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:04:47,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:04:47,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:04:47,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:04:47,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:04:47,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:04:47,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:04:47,811 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:04:47,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:04:47,811 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_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f [2024-11-08 18:04:48,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:04:48,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:04:48,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:04:48,194 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:04:48,195 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:04:48,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i Unable to find full path for "g++" [2024-11-08 18:04:50,263 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:04:51,014 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:04:51,017 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2024-11-08 18:04:51,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/data/7d6c85fa2/f86f6f7d645d44a0ad79a2fe9930c7d8/FLAG7d29adc9e [2024-11-08 18:04:51,092 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/data/7d6c85fa2/f86f6f7d645d44a0ad79a2fe9930c7d8 [2024-11-08 18:04:51,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:04:51,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:04:51,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:04:51,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:04:51,106 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:04:51,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:04:51" (1/1) ... [2024-11-08 18:04:51,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29253053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:51, skipping insertion in model container [2024-11-08 18:04:51,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:04:51" (1/1) ... [2024-11-08 18:04:51,271 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:04:51,671 WARN L250 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_8e19d530-4b00-40e7-a626-a7921669d8a2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2024-11-08 18:04:51,684 WARN L250 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_8e19d530-4b00-40e7-a626-a7921669d8a2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2024-11-08 18:04:52,995 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:52,996 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:52,997 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:52,998 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:52,999 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:53,023 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:53,024 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:53,027 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:53,027 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:53,030 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:53,032 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:53,033 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:53,033 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:53,899 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:53,920 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,109 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,157 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:04:54,415 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:04:54,440 WARN L250 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_8e19d530-4b00-40e7-a626-a7921669d8a2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2024-11-08 18:04:54,445 WARN L250 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_8e19d530-4b00-40e7-a626-a7921669d8a2/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2024-11-08 18:04:54,521 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,522 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,522 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,523 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,524 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,536 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,541 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,543 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,543 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,549 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,550 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,551 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,551 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,694 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,701 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8553] [2024-11-08 18:04:54,786 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,787 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 18:04:54,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [9039-9050] [2024-11-08 18:04:54,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:04:55,264 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:04:55,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55 WrapperNode [2024-11-08 18:04:55,265 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:04:55,266 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:04:55,266 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:04:55,266 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:04:55,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,516 INFO L138 Inliner]: procedures = 684, calls = 3059, calls flagged for inlining = 70, calls inlined = 10, statements flattened = 980 [2024-11-08 18:04:55,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:04:55,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:04:55,520 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:04:55,520 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:04:55,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,743 INFO L175 MemorySlicer]: Split 591 memory accesses to 7 slices as follows [2, 51, 257, 238, 6, 16, 21]. 43 percent of accesses are in the largest equivalence class. The 37 initializations are split as follows [2, 8, 0, 6, 0, 16, 5]. The 498 writes are split as follows [0, 3, 257, 232, 2, 0, 4]. [2024-11-08 18:04:55,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:04:55,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:04:55,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:04:55,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:04:55,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (1/1) ... [2024-11-08 18:04:55,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:04:55,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:55,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:04:55,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:04:55,952 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-08 18:04:55,952 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-08 18:04:55,952 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-08 18:04:55,953 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-08 18:04:55,953 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-08 18:04:55,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-08 18:04:55,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:04:55,953 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-08 18:04:55,954 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-08 18:04:55,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-08 18:04:55,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-08 18:04:55,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-08 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-08 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-08 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-08 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-11-08 18:04:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-08 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-08 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-08 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-08 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-08 18:04:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-08 18:04:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-08 18:04:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-08 18:04:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-08 18:04:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-08 18:04:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-08 18:04:55,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-08 18:04:55,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-08 18:04:55,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-08 18:04:55,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:04:55,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:04:55,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:04:55,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:04:55,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 18:04:55,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 18:04:55,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 18:04:55,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-08 18:04:55,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-08 18:04:55,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-08 18:04:55,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-08 18:04:55,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-08 18:04:55,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-08 18:04:55,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-08 18:04:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-08 18:04:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-08 18:04:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-08 18:04:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-08 18:04:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-08 18:04:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-08 18:04:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-08 18:04:55,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 18:04:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 18:04:55,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:04:55,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:04:55,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 18:04:55,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 18:04:55,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 18:04:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 18:04:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 18:04:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 18:04:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 18:04:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:04:55,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:04:55,965 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-08 18:04:55,965 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-08 18:04:55,965 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-08 18:04:55,965 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-08 18:04:55,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-08 18:04:55,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-08 18:04:55,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-08 18:04:55,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-08 18:04:55,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-08 18:04:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-08 18:04:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-08 18:04:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-08 18:04:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-08 18:04:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-08 18:04:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-08 18:04:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-08 18:04:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-08 18:04:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-08 18:04:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2024-11-08 18:04:55,968 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2024-11-08 18:04:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:04:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:04:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:04:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:04:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 18:04:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 18:04:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 18:04:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 18:04:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 18:04:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 18:04:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-11-08 18:04:55,970 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-11-08 18:04:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 18:04:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 18:04:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 18:04:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 18:04:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 18:04:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 18:04:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 18:04:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-08 18:04:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-08 18:04:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-08 18:04:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-08 18:04:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:04:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:04:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:04:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:04:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 18:04:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 18:04:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 18:04:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-08 18:04:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-08 18:04:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-08 18:04:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-08 18:04:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-08 18:04:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-08 18:04:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-11-08 18:04:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:04:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:04:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:04:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:04:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:04:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 18:04:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 18:04:56,479 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:04:56,482 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:05:07,176 INFO L? ?]: Removed 251 outVars from TransFormulas that were not future-live. [2024-11-08 18:05:07,176 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:05:07,201 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:05:07,203 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:05:07,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:07 BoogieIcfgContainer [2024-11-08 18:05:07,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:05:07,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:05:07,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:05:07,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:05:07,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:04:51" (1/3) ... [2024-11-08 18:05:07,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520da64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:05:07, skipping insertion in model container [2024-11-08 18:05:07,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:55" (2/3) ... [2024-11-08 18:05:07,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520da64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:05:07, skipping insertion in model container [2024-11-08 18:05:07,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:05:07" (3/3) ... [2024-11-08 18:05:07,221 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_string_harness.i [2024-11-08 18:05:07,244 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:05:07,244 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:05:07,351 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:05:07,360 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, 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;@3539a779, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:05:07,361 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:05:07,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 119 states have internal predecessors, (149), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 18:05:07,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 18:05:07,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:05:07,388 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-08 18:05:07,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:05:07,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:07,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1996143641, now seen corresponding path program 1 times [2024-11-08 18:05:07,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:05:07,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226579665] [2024-11-08 18:05:07,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:07,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:06:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:55,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:06:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:55,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:06:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:55,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:06:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:55,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:06:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:55,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:06:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:55,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:06:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:55,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:06:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:55,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 18:06:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:06:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 18:06:55,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:06:55,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226579665] [2024-11-08 18:06:55,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226579665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:06:55,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:06:55,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:06:55,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411036807] [2024-11-08 18:06:55,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:06:55,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:06:55,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:06:55,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:06:55,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:06:55,485 INFO L87 Difference]: Start difference. First operand has 181 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 119 states have internal predecessors, (149), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:06:59,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:07:02,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:07:02,053 INFO L93 Difference]: Finished difference Result 353 states and 507 transitions. [2024-11-08 18:07:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:07:02,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2024-11-08 18:07:02,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:07:02,068 INFO L225 Difference]: With dead ends: 353 [2024-11-08 18:07:02,068 INFO L226 Difference]: Without dead ends: 176 [2024-11-08 18:07:02,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:07:02,076 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 85 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:07:02,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 217 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2024-11-08 18:07:02,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-08 18:07:02,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-08 18:07:02,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 114 states have (on average 1.2543859649122806) internal successors, (143), 115 states have internal predecessors, (143), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-08 18:07:02,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 238 transitions. [2024-11-08 18:07:02,137 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 238 transitions. Word has length 62 [2024-11-08 18:07:02,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:07:02,143 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 238 transitions. [2024-11-08 18:07:02,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:07:02,143 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 238 transitions. [2024-11-08 18:07:02,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 18:07:02,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:07:02,150 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-08 18:07:02,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:07:02,151 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:07:02,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:02,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1690815581, now seen corresponding path program 1 times [2024-11-08 18:07:02,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:07:02,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20199982] [2024-11-08 18:07:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:02,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:08:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:51,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:08:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:51,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:08:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:51,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:08:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:51,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:08:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:51,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:08:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:52,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:08:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:52,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:08:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:52,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 18:08:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:08:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 18:08:52,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:08:52,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20199982] [2024-11-08 18:08:52,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20199982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:08:52,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:08:52,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:08:52,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536108443] [2024-11-08 18:08:52,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:08:52,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:08:52,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:08:52,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:08:52,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:08:52,163 INFO L87 Difference]: Start difference. First operand 176 states and 238 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 18:08:56,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:09:02,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:09:02,860 INFO L93 Difference]: Finished difference Result 313 states and 431 transitions. [2024-11-08 18:09:02,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:09:02,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2024-11-08 18:09:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:09:02,865 INFO L225 Difference]: With dead ends: 313 [2024-11-08 18:09:02,866 INFO L226 Difference]: Without dead ends: 179 [2024-11-08 18:09:02,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:09:02,869 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 137 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:09:02,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 450 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 517 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2024-11-08 18:09:02,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-08 18:09:02,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-08 18:09:02,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 116 states have (on average 1.25) internal successors, (145), 118 states have internal predecessors, (145), 48 states have call successors, (48), 13 states have call predecessors, (48), 14 states have return successors, (51), 47 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-08 18:09:02,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 244 transitions. [2024-11-08 18:09:02,897 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 244 transitions. Word has length 62 [2024-11-08 18:09:02,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:09:02,898 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 244 transitions. [2024-11-08 18:09:02,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 18:09:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 244 transitions. [2024-11-08 18:09:02,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 18:09:02,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:09:02,901 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-08 18:09:02,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:09:02,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:09:02,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:09:02,902 INFO L85 PathProgramCache]: Analyzing trace with hash -960899666, now seen corresponding path program 1 times [2024-11-08 18:09:02,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:09:02,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763147025] [2024-11-08 18:09:02,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:09:02,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:52,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:10:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:52,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:10:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:52,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:10:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:52,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:10:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:52,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:10:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:52,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:10:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:52,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:10:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:52,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:10:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 18:10:52,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:52,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763147025] [2024-11-08 18:10:52,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763147025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:52,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:52,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:10:52,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190197604] [2024-11-08 18:10:52,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:52,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:10:52,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:52,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:10:52,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:10:52,722 INFO L87 Difference]: Start difference. First operand 179 states and 244 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 18:10:56,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:11:05,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:11:05,557 INFO L93 Difference]: Finished difference Result 185 states and 249 transitions. [2024-11-08 18:11:05,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:11:05,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2024-11-08 18:11:05,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:11:05,561 INFO L225 Difference]: With dead ends: 185 [2024-11-08 18:11:05,561 INFO L226 Difference]: Without dead ends: 183 [2024-11-08 18:11:05,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:11:05,563 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 173 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:11:05,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 526 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 686 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2024-11-08 18:11:05,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-08 18:11:05,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-08 18:11:05,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 119 states have (on average 1.2436974789915967) internal successors, (148), 121 states have internal predecessors, (148), 48 states have call successors, (48), 14 states have call predecessors, (48), 15 states have return successors, (51), 47 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-08 18:11:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 247 transitions. [2024-11-08 18:11:05,591 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 247 transitions. Word has length 68 [2024-11-08 18:11:05,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:11:05,591 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 247 transitions. [2024-11-08 18:11:05,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 18:11:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 247 transitions. [2024-11-08 18:11:05,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 18:11:05,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:11:05,594 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-08 18:11:05,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:11:05,595 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:11:05,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:11:05,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1735774001, now seen corresponding path program 1 times [2024-11-08 18:11:05,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:11:05,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437968543] [2024-11-08 18:11:05,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:11:05,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:12:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:54,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:12:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:54,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:12:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:54,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:12:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:54,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:12:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:54,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:12:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:54,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:12:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:54,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:12:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:54,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:12:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:54,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:12:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:12:54,909 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 18:12:54,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:12:54,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437968543] [2024-11-08 18:12:54,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437968543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:12:54,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:12:54,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:12:54,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279236001] [2024-11-08 18:12:54,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:12:54,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:12:54,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:12:54,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:12:54,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:12:54,913 INFO L87 Difference]: Start difference. First operand 183 states and 247 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:12:59,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:13:10,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:13:10,657 INFO L93 Difference]: Finished difference Result 214 states and 292 transitions. [2024-11-08 18:13:10,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:13:10,658 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2024-11-08 18:13:10,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:13:10,661 INFO L225 Difference]: With dead ends: 214 [2024-11-08 18:13:10,661 INFO L226 Difference]: Without dead ends: 212 [2024-11-08 18:13:10,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:13:10,663 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 110 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:13:10,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 620 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 918 Invalid, 1 Unknown, 0 Unchecked, 15.2s Time] [2024-11-08 18:13:10,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-08 18:13:10,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 193. [2024-11-08 18:13:10,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 126 states have (on average 1.246031746031746) internal successors, (157), 129 states have internal predecessors, (157), 50 states have call successors, (50), 15 states have call predecessors, (50), 16 states have return successors, (53), 48 states have call predecessors, (53), 49 states have call successors, (53) [2024-11-08 18:13:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 260 transitions. [2024-11-08 18:13:10,700 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 260 transitions. Word has length 74 [2024-11-08 18:13:10,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:13:10,700 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 260 transitions. [2024-11-08 18:13:10,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:13:10,701 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 260 transitions. [2024-11-08 18:13:10,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 18:13:10,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:13:10,703 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-08 18:13:10,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:13:10,703 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:13:10,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:13:10,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1938056932, now seen corresponding path program 1 times [2024-11-08 18:13:10,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:13:10,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674019770] [2024-11-08 18:13:10,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:13:10,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:14:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:56,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:14:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:56,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:14:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:56,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:14:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:56,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:14:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:56,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:14:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:56,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:14:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:56,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:14:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:56,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:14:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:56,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 18:14:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 18:14:56,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:14:56,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674019770] [2024-11-08 18:14:56,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674019770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:14:56,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:14:56,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:14:56,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010346936] [2024-11-08 18:14:56,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:14:56,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:14:56,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:14:56,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:14:56,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:14:56,393 INFO L87 Difference]: Start difference. First operand 193 states and 260 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:15:00,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:15:06,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:15:06,466 INFO L93 Difference]: Finished difference Result 294 states and 399 transitions. [2024-11-08 18:15:06,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:15:06,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2024-11-08 18:15:06,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:15:06,470 INFO L225 Difference]: With dead ends: 294 [2024-11-08 18:15:06,470 INFO L226 Difference]: Without dead ends: 229 [2024-11-08 18:15:06,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:15:06,472 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 97 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:15:06,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 413 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2024-11-08 18:15:06,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-08 18:15:06,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2024-11-08 18:15:06,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 150 states have (on average 1.24) internal successors, (186), 153 states have internal predecessors, (186), 62 states have call successors, (62), 15 states have call predecessors, (62), 16 states have return successors, (66), 60 states have call predecessors, (66), 61 states have call successors, (66) [2024-11-08 18:15:06,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 314 transitions. [2024-11-08 18:15:06,502 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 314 transitions. Word has length 75 [2024-11-08 18:15:06,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:15:06,503 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 314 transitions. [2024-11-08 18:15:06,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:15:06,503 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 314 transitions. [2024-11-08 18:15:06,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 18:15:06,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:15:06,506 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2024-11-08 18:15:06,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:15:06,506 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:15:06,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:15:06,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2057222190, now seen corresponding path program 1 times [2024-11-08 18:15:06,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:15:06,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184709658] [2024-11-08 18:15:06,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:15:06,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:16:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:03,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:17:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:03,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:17:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:03,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:17:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:04,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:04,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:17:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:17:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 18:17:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:17:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:17:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 18:17:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,519 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 18:17:05,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:17:05,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184709658] [2024-11-08 18:17:05,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184709658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:17:05,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:17:05,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:17:05,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291895992] [2024-11-08 18:17:05,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:17:05,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:17:05,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:17:05,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:17:05,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:17:05,522 INFO L87 Difference]: Start difference. First operand 229 states and 314 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 18:17:09,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:17:26,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:17:26,259 INFO L93 Difference]: Finished difference Result 450 states and 639 transitions. [2024-11-08 18:17:26,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:17:26,260 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 80 [2024-11-08 18:17:26,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:17:26,263 INFO L225 Difference]: With dead ends: 450 [2024-11-08 18:17:26,264 INFO L226 Difference]: Without dead ends: 273 [2024-11-08 18:17:26,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:17:26,265 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 159 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:17:26,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 769 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1227 Invalid, 1 Unknown, 0 Unchecked, 19.6s Time] [2024-11-08 18:17:26,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-08 18:17:26,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 266. [2024-11-08 18:17:26,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 172 states have (on average 1.2383720930232558) internal successors, (213), 176 states have internal predecessors, (213), 76 states have call successors, (76), 15 states have call predecessors, (76), 17 states have return successors, (86), 74 states have call predecessors, (86), 75 states have call successors, (86) [2024-11-08 18:17:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 375 transitions. [2024-11-08 18:17:26,302 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 375 transitions. Word has length 80 [2024-11-08 18:17:26,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:17:26,303 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 375 transitions. [2024-11-08 18:17:26,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 18:17:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 375 transitions. [2024-11-08 18:17:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:17:26,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:17:26,305 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2024-11-08 18:17:26,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:17:26,305 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:17:26,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:17:26,306 INFO L85 PathProgramCache]: Analyzing trace with hash -759716362, now seen corresponding path program 1 times [2024-11-08 18:17:26,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:17:26,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45808349] [2024-11-08 18:17:26,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:17:26,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:18,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:19:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:18,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:19:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:18,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:19:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:18,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:19:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:18,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:19:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:19,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 18:19:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:20,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 18:19:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:20,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 18:19:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:20,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:19:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:20,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:19:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 18:19:20,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:20,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45808349] [2024-11-08 18:19:20,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45808349] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:19:20,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635001255] [2024-11-08 18:19:20,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:20,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:19:20,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:19:20,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:19:20,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e19d530-4b00-40e7-a626-a7921669d8a2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process