./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya --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 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:43:45,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:43:45,070 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 05:43:45,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:43:45,075 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:43:45,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:43:45,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:43:45,100 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:43:45,101 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:43:45,101 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:43:45,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:43:45,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:43:45,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:43:45,104 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:43:45,104 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:43:45,105 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:43:45,105 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:43:45,106 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:43:45,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:43:45,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:43:45,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:43:45,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:43:45,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:43:45,109 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:43:45,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:43:45,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:43:45,110 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:43:45,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:43:45,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:43:45,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:43:45,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:43:45,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:43:45,112 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:43:45,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:43:45,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:43:45,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:43:45,113 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:43:45,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:43:45,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:43:45,114 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_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2023-11-29 05:43:45,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:43:45,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:43:45,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:43:45,377 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:43:45,378 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:43:45,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2023-11-29 05:43:48,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:43:48,565 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:43:48,566 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2023-11-29 05:43:48,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/data/934313257/560e29eaf2f840aeb2dcc303927e8943/FLAG6edb277e1 [2023-11-29 05:43:48,609 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/data/934313257/560e29eaf2f840aeb2dcc303927e8943 [2023-11-29 05:43:48,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:43:48,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:43:48,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:43:48,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:43:48,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:43:48,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7453ed7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:48, skipping insertion in model container [2023-11-29 05:43:48,623 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:43:48" (1/1) ... [2023-11-29 05:43:48,700 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:43:49,313 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2023-11-29 05:43:49,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:43:49,436 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:43:49,573 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2023-11-29 05:43:49,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:43:49,618 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:43:49,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49 WrapperNode [2023-11-29 05:43:49,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:43:49,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:43:49,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:43:49,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:43:49,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,701 INFO L138 Inliner]: procedures = 77, calls = 266, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 823 [2023-11-29 05:43:49,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:43:49,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:43:49,702 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:43:49,702 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:43:49,715 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,727 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,796 INFO L175 MemorySlicer]: Split 156 memory accesses to 6 slices as follows [2, 6, 8, 81, 19, 40]. 52 percent of accesses are in the largest equivalence class. The 93 initializations are split as follows [2, 6, 8, 18, 19, 40]. The 29 writes are split as follows [0, 0, 0, 29, 0, 0]. [2023-11-29 05:43:49,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:43:49,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:43:49,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:43:49,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:43:49,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (1/1) ... [2023-11-29 05:43:49,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:43:49,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:49,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:43:49,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:43:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2023-11-29 05:43:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2023-11-29 05:43:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-29 05:43:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-29 05:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 05:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 05:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 05:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 05:43:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 05:43:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 05:43:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-29 05:43:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-29 05:43:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2023-11-29 05:43:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2023-11-29 05:43:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-29 05:43:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-29 05:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 05:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 05:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 05:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 05:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 05:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 05:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 05:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 05:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 05:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 05:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-29 05:43:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-29 05:43:49,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-29 05:43:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-29 05:43:49,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-29 05:43:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-29 05:43:49,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:43:49,948 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-29 05:43:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-29 05:43:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 05:43:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 05:43:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 05:43:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 05:43:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 05:43:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 05:43:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-29 05:43:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-29 05:43:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-29 05:43:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-29 05:43:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:43:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:43:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:43:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 05:43:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 05:43:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 05:43:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-29 05:43:49,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-29 05:43:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-11-29 05:43:49,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-11-29 05:43:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-29 05:43:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-29 05:43:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-11-29 05:43:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-11-29 05:43:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:43:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:43:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:43:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 05:43:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 05:43:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 05:43:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 05:43:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:43:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:43:50,204 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:43:50,206 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:43:50,379 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-11-29 05:43:50,390 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 05:43:51,129 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2023-11-29 05:43:51,129 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2023-11-29 05:43:51,139 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:43:51,236 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:43:51,236 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-29 05:43:51,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:43:51 BoogieIcfgContainer [2023-11-29 05:43:51,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:43:51,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:43:51,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:43:51,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:43:51,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:43:48" (1/3) ... [2023-11-29 05:43:51,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd9f19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:43:51, skipping insertion in model container [2023-11-29 05:43:51,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:43:49" (2/3) ... [2023-11-29 05:43:51,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd9f19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:43:51, skipping insertion in model container [2023-11-29 05:43:51,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:43:51" (3/3) ... [2023-11-29 05:43:51,247 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2023-11-29 05:43:51,268 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:43:51,268 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:43:51,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:43:51,332 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@735ca8a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:43:51,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:43:51,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 115 states have (on average 1.5043478260869565) internal successors, (173), 123 states have internal predecessors, (173), 30 states have call successors, (30), 15 states have call predecessors, (30), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 05:43:51,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 05:43:51,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:43:51,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:43:51,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:43:51,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:51,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1408056025, now seen corresponding path program 1 times [2023-11-29 05:43:51,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:51,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306168283] [2023-11-29 05:43:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:51,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:52,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:43:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:52,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:43:52,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:52,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306168283] [2023-11-29 05:43:52,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306168283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:52,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:43:52,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:43:52,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956883425] [2023-11-29 05:43:52,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:52,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:43:52,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:52,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:43:52,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:43:52,754 INFO L87 Difference]: Start difference. First operand has 161 states, 115 states have (on average 1.5043478260869565) internal successors, (173), 123 states have internal predecessors, (173), 30 states have call successors, (30), 15 states have call predecessors, (30), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 05:43:53,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:43:53,178 INFO L93 Difference]: Finished difference Result 447 states and 665 transitions. [2023-11-29 05:43:53,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:43:53,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-29 05:43:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:43:53,194 INFO L225 Difference]: With dead ends: 447 [2023-11-29 05:43:53,194 INFO L226 Difference]: Without dead ends: 290 [2023-11-29 05:43:53,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:43:53,202 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 198 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:43:53,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 396 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:43:53,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-11-29 05:43:53,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 286. [2023-11-29 05:43:53,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 215 states have internal predecessors, (283), 50 states have call successors, (50), 25 states have call predecessors, (50), 24 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 05:43:53,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 379 transitions. [2023-11-29 05:43:53,276 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 379 transitions. Word has length 12 [2023-11-29 05:43:53,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:43:53,277 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 379 transitions. [2023-11-29 05:43:53,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 05:43:53,277 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 379 transitions. [2023-11-29 05:43:53,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 05:43:53,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:43:53,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:43:53,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:43:53,279 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:43:53,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash 699956689, now seen corresponding path program 1 times [2023-11-29 05:43:53,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:53,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691190810] [2023-11-29 05:43:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:53,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:54,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:43:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:43:54,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:54,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691190810] [2023-11-29 05:43:54,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691190810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:54,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:43:54,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:43:54,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308486294] [2023-11-29 05:43:54,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:54,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:43:54,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:54,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:43:54,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:43:54,104 INFO L87 Difference]: Start difference. First operand 286 states and 379 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 05:43:54,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:43:54,563 INFO L93 Difference]: Finished difference Result 831 states and 1110 transitions. [2023-11-29 05:43:54,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:43:54,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-29 05:43:54,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:43:54,569 INFO L225 Difference]: With dead ends: 831 [2023-11-29 05:43:54,569 INFO L226 Difference]: Without dead ends: 551 [2023-11-29 05:43:54,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:43:54,573 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 190 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:43:54,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 407 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:43:54,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-29 05:43:54,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 544. [2023-11-29 05:43:54,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 405 states have (on average 1.3358024691358024) internal successors, (541), 408 states have internal predecessors, (541), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-29 05:43:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 723 transitions. [2023-11-29 05:43:54,630 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 723 transitions. Word has length 13 [2023-11-29 05:43:54,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:43:54,630 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 723 transitions. [2023-11-29 05:43:54,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 05:43:54,631 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 723 transitions. [2023-11-29 05:43:54,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 05:43:54,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:43:54,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:43:54,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:43:54,633 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:43:54,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:54,634 INFO L85 PathProgramCache]: Analyzing trace with hash 240243532, now seen corresponding path program 1 times [2023-11-29 05:43:54,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:54,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390914952] [2023-11-29 05:43:54,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:54,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:55,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:43:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:55,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 05:43:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:55,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:43:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 05:43:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:55,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:43:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:55,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:43:55,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:55,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390914952] [2023-11-29 05:43:55,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390914952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:55,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:43:55,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:43:55,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67488401] [2023-11-29 05:43:55,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:55,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:43:55,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:55,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:43:55,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:43:55,350 INFO L87 Difference]: Start difference. First operand 544 states and 723 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:43:55,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:43:55,859 INFO L93 Difference]: Finished difference Result 1140 states and 1536 transitions. [2023-11-29 05:43:55,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:43:55,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2023-11-29 05:43:55,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:43:55,867 INFO L225 Difference]: With dead ends: 1140 [2023-11-29 05:43:55,867 INFO L226 Difference]: Without dead ends: 607 [2023-11-29 05:43:55,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:43:55,870 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 132 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:43:55,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 276 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:43:55,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2023-11-29 05:43:55,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 575. [2023-11-29 05:43:55,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 436 states have (on average 1.3371559633027523) internal successors, (583), 439 states have internal predecessors, (583), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-29 05:43:55,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 765 transitions. [2023-11-29 05:43:55,923 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 765 transitions. Word has length 40 [2023-11-29 05:43:55,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:43:55,924 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 765 transitions. [2023-11-29 05:43:55,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:43:55,924 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 765 transitions. [2023-11-29 05:43:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 05:43:55,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:43:55,929 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:43:55,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:43:55,929 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:43:55,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:55,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1317687453, now seen corresponding path program 1 times [2023-11-29 05:43:55,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:55,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538906712] [2023-11-29 05:43:55,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:55,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:56,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:43:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:56,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 05:43:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:57,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:43:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:57,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 05:43:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:43:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 05:43:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:57,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:43:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 05:43:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:43:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:57,119 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 05:43:57,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:57,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538906712] [2023-11-29 05:43:57,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538906712] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:43:57,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091809060] [2023-11-29 05:43:57,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:57,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:43:57,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:57,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:43:57,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:43:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:58,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:43:58,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:43:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:43:58,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:43:58,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091809060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:43:58,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:43:58,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-29 05:43:58,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961352630] [2023-11-29 05:43:58,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:43:58,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:43:58,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:58,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:43:58,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:43:58,198 INFO L87 Difference]: Start difference. First operand 575 states and 765 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:43:58,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:43:58,760 INFO L93 Difference]: Finished difference Result 1142 states and 1521 transitions. [2023-11-29 05:43:58,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:43:58,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 2 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 67 [2023-11-29 05:43:58,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:43:58,765 INFO L225 Difference]: With dead ends: 1142 [2023-11-29 05:43:58,765 INFO L226 Difference]: Without dead ends: 575 [2023-11-29 05:43:58,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:43:58,769 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:43:58,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 867 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:43:58,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-11-29 05:43:58,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2023-11-29 05:43:58,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 436 states have (on average 1.334862385321101) internal successors, (582), 439 states have internal predecessors, (582), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-29 05:43:58,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 764 transitions. [2023-11-29 05:43:58,806 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 764 transitions. Word has length 67 [2023-11-29 05:43:58,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:43:58,807 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 764 transitions. [2023-11-29 05:43:58,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:43:58,807 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 764 transitions. [2023-11-29 05:43:58,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 05:43:58,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:43:58,810 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:43:58,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:43:59,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:43:59,012 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:43:59,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:43:59,012 INFO L85 PathProgramCache]: Analyzing trace with hash -785958115, now seen corresponding path program 1 times [2023-11-29 05:43:59,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:43:59,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632826713] [2023-11-29 05:43:59,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:59,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:43:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:43:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:43:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:43:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:43:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:43:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:43:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:43:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:43:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:43:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 05:43:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:43:59,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 05:43:59,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:59,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632826713] [2023-11-29 05:43:59,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632826713] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:43:59,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520952861] [2023-11-29 05:43:59,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:43:59,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:43:59,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:43:59,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:43:59,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:44:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:00,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 05:44:00,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:00,992 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-29 05:44:00,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:00,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520952861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:00,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:00,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2023-11-29 05:44:00,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377165735] [2023-11-29 05:44:00,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:00,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:44:00,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:00,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:44:00,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:44:00,995 INFO L87 Difference]: Start difference. First operand 575 states and 764 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 05:44:01,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:01,716 INFO L93 Difference]: Finished difference Result 1052 states and 1435 transitions. [2023-11-29 05:44:01,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:44:01,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 71 [2023-11-29 05:44:01,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:01,723 INFO L225 Difference]: With dead ends: 1052 [2023-11-29 05:44:01,723 INFO L226 Difference]: Without dead ends: 762 [2023-11-29 05:44:01,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:44:01,726 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 97 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:01,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1634 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:44:01,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-11-29 05:44:01,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 579. [2023-11-29 05:44:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 440 states have (on average 1.3318181818181818) internal successors, (586), 443 states have internal predecessors, (586), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-29 05:44:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 768 transitions. [2023-11-29 05:44:01,793 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 768 transitions. Word has length 71 [2023-11-29 05:44:01,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:01,793 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 768 transitions. [2023-11-29 05:44:01,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 05:44:01,794 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 768 transitions. [2023-11-29 05:44:01,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 05:44:01,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:01,797 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:01,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:44:02,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:02,005 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:02,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:02,005 INFO L85 PathProgramCache]: Analyzing trace with hash 807898407, now seen corresponding path program 1 times [2023-11-29 05:44:02,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:02,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135599283] [2023-11-29 05:44:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:02,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:44:03,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:03,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135599283] [2023-11-29 05:44:03,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135599283] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:03,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607041486] [2023-11-29 05:44:03,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:03,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:03,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:03,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:03,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:44:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:04,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 1167 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:44:04,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:44:04,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:04,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607041486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:04,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:04,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-11-29 05:44:04,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038421450] [2023-11-29 05:44:04,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:04,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:44:04,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:04,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:44:04,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:44:04,165 INFO L87 Difference]: Start difference. First operand 579 states and 768 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 05:44:04,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:04,532 INFO L93 Difference]: Finished difference Result 1073 states and 1438 transitions. [2023-11-29 05:44:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:44:04,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2023-11-29 05:44:04,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:04,536 INFO L225 Difference]: With dead ends: 1073 [2023-11-29 05:44:04,536 INFO L226 Difference]: Without dead ends: 506 [2023-11-29 05:44:04,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:44:04,539 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 35 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:04,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 617 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:44:04,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-11-29 05:44:04,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 387. [2023-11-29 05:44:04,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 290 states have (on average 1.303448275862069) internal successors, (378), 293 states have internal predecessors, (378), 63 states have call successors, (63), 34 states have call predecessors, (63), 33 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 05:44:04,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 500 transitions. [2023-11-29 05:44:04,561 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 500 transitions. Word has length 78 [2023-11-29 05:44:04,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:04,562 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 500 transitions. [2023-11-29 05:44:04,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 05:44:04,562 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 500 transitions. [2023-11-29 05:44:04,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 05:44:04,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:04,564 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:04,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:44:04,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 05:44:04,765 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:04,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:04,765 INFO L85 PathProgramCache]: Analyzing trace with hash 948447017, now seen corresponding path program 1 times [2023-11-29 05:44:04,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:04,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657116910] [2023-11-29 05:44:04,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:04,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:44:05,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:05,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657116910] [2023-11-29 05:44:05,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657116910] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:05,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355528532] [2023-11-29 05:44:05,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:05,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:05,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:05,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:05,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:44:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:06,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:44:06,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:44:06,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:06,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355528532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:06,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:06,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-11-29 05:44:06,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788443127] [2023-11-29 05:44:06,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:06,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:44:06,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:06,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:44:06,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:44:06,888 INFO L87 Difference]: Start difference. First operand 387 states and 500 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 05:44:07,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:07,191 INFO L93 Difference]: Finished difference Result 574 states and 735 transitions. [2023-11-29 05:44:07,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:44:07,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2023-11-29 05:44:07,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:07,196 INFO L225 Difference]: With dead ends: 574 [2023-11-29 05:44:07,196 INFO L226 Difference]: Without dead ends: 571 [2023-11-29 05:44:07,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:44:07,198 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 239 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:07,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 312 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:44:07,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-29 05:44:07,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 553. [2023-11-29 05:44:07,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 412 states have (on average 1.2985436893203883) internal successors, (535), 413 states have internal predecessors, (535), 89 states have call successors, (89), 52 states have call predecessors, (89), 51 states have return successors, (89), 87 states have call predecessors, (89), 85 states have call successors, (89) [2023-11-29 05:44:07,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 713 transitions. [2023-11-29 05:44:07,234 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 713 transitions. Word has length 78 [2023-11-29 05:44:07,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:07,235 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 713 transitions. [2023-11-29 05:44:07,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 05:44:07,236 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 713 transitions. [2023-11-29 05:44:07,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 05:44:07,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:07,238 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:07,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:44:07,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:07,449 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:07,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:07,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1714671200, now seen corresponding path program 1 times [2023-11-29 05:44:07,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:07,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142559735] [2023-11-29 05:44:07,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:07,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 05:44:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 05:44:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 05:44:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:08,174 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:44:08,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:08,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142559735] [2023-11-29 05:44:08,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142559735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:08,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:44:08,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:44:08,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407446278] [2023-11-29 05:44:08,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:08,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:44:08,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:08,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:44:08,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:44:08,176 INFO L87 Difference]: Start difference. First operand 553 states and 713 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:44:08,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:08,824 INFO L93 Difference]: Finished difference Result 1134 states and 1473 transitions. [2023-11-29 05:44:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:44:08,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 81 [2023-11-29 05:44:08,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:08,829 INFO L225 Difference]: With dead ends: 1134 [2023-11-29 05:44:08,829 INFO L226 Difference]: Without dead ends: 584 [2023-11-29 05:44:08,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:44:08,832 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 169 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:08,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 551 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:44:08,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-11-29 05:44:08,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 525. [2023-11-29 05:44:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 392 states have (on average 1.288265306122449) internal successors, (505), 393 states have internal predecessors, (505), 87 states have call successors, (87), 46 states have call predecessors, (87), 45 states have return successors, (89), 85 states have call predecessors, (89), 83 states have call successors, (89) [2023-11-29 05:44:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 681 transitions. [2023-11-29 05:44:08,860 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 681 transitions. Word has length 81 [2023-11-29 05:44:08,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:08,861 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 681 transitions. [2023-11-29 05:44:08,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:44:08,861 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 681 transitions. [2023-11-29 05:44:08,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 05:44:08,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:08,862 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:08,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 05:44:08,862 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:08,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:08,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1254956183, now seen corresponding path program 1 times [2023-11-29 05:44:08,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:08,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847442586] [2023-11-29 05:44:08,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:08,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 05:44:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:44:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 05:44:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:09,990 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:44:09,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:09,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847442586] [2023-11-29 05:44:09,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847442586] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:09,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860727782] [2023-11-29 05:44:09,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:09,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:09,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:09,992 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:09,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:44:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:10,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 05:44:10,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:15,065 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.base_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset_BEFORE_CALL_1| Int)) (not (= (select (select |c_#memory_$Pointer$#3.base| |v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.base_BEFORE_CALL_1|) |v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset_BEFORE_CALL_1|) 0))) (exists ((|v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.base_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset_BEFORE_CALL_1| Int)) (not (= (select (select |c_#memory_$Pointer$#3.offset| |v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.base_BEFORE_CALL_1|) |v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset_BEFORE_CALL_1|) 0)))) is different from true [2023-11-29 05:44:15,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2023-11-29 05:44:15,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2023-11-29 05:44:15,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 05:44:15,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 05:44:15,283 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:44:15,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:15,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860727782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:15,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:15,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-11-29 05:44:15,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599365165] [2023-11-29 05:44:15,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:15,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:44:15,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:15,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:44:15,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=157, Unknown=1, NotChecked=24, Total=210 [2023-11-29 05:44:15,286 INFO L87 Difference]: Start difference. First operand 525 states and 681 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 5 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 05:44:16,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:16,267 INFO L93 Difference]: Finished difference Result 586 states and 752 transitions. [2023-11-29 05:44:16,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:44:16,268 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 5 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 92 [2023-11-29 05:44:16,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:16,273 INFO L225 Difference]: With dead ends: 586 [2023-11-29 05:44:16,273 INFO L226 Difference]: Without dead ends: 555 [2023-11-29 05:44:16,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=36, Invalid=207, Unknown=1, NotChecked=28, Total=272 [2023-11-29 05:44:16,274 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 15 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 255 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:16,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 936 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 0 Unknown, 255 Unchecked, 0.9s Time] [2023-11-29 05:44:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-11-29 05:44:16,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 541. [2023-11-29 05:44:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 400 states have (on average 1.2875) internal successors, (515), 405 states have internal predecessors, (515), 89 states have call successors, (89), 50 states have call predecessors, (89), 51 states have return successors, (95), 85 states have call predecessors, (95), 85 states have call successors, (95) [2023-11-29 05:44:16,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 699 transitions. [2023-11-29 05:44:16,316 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 699 transitions. Word has length 92 [2023-11-29 05:44:16,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:16,317 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 699 transitions. [2023-11-29 05:44:16,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 5 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 05:44:16,317 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 699 transitions. [2023-11-29 05:44:16,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 05:44:16,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:16,319 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:16,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:44:16,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:16,520 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:16,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:16,520 INFO L85 PathProgramCache]: Analyzing trace with hash -391115780, now seen corresponding path program 1 times [2023-11-29 05:44:16,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:16,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399677664] [2023-11-29 05:44:16,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:16,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 05:44:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 05:44:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 05:44:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:17,673 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:44:17,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:17,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399677664] [2023-11-29 05:44:17,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399677664] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:17,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930454451] [2023-11-29 05:44:17,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:17,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:17,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:17,676 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:17,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:44:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:18,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-29 05:44:18,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:18,721 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-29 05:44:18,721 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:18,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930454451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:18,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:18,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2023-11-29 05:44:18,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375649826] [2023-11-29 05:44:18,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:18,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:44:18,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:18,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:44:18,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:44:18,724 INFO L87 Difference]: Start difference. First operand 541 states and 699 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 05:44:19,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:19,425 INFO L93 Difference]: Finished difference Result 1092 states and 1422 transitions. [2023-11-29 05:44:19,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:44:19,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 94 [2023-11-29 05:44:19,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:19,430 INFO L225 Difference]: With dead ends: 1092 [2023-11-29 05:44:19,430 INFO L226 Difference]: Without dead ends: 590 [2023-11-29 05:44:19,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:44:19,433 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 11 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:19,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1444 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:44:19,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2023-11-29 05:44:19,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 567. [2023-11-29 05:44:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 417 states have (on average 1.275779376498801) internal successors, (532), 423 states have internal predecessors, (532), 89 states have call successors, (89), 50 states have call predecessors, (89), 60 states have return successors, (112), 93 states have call predecessors, (112), 85 states have call successors, (112) [2023-11-29 05:44:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 733 transitions. [2023-11-29 05:44:19,481 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 733 transitions. Word has length 94 [2023-11-29 05:44:19,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:19,482 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 733 transitions. [2023-11-29 05:44:19,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 05:44:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 733 transitions. [2023-11-29 05:44:19,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 05:44:19,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:19,484 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:19,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:44:19,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 05:44:19,685 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:19,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1579823677, now seen corresponding path program 1 times [2023-11-29 05:44:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:19,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883516664] [2023-11-29 05:44:19,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:19,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 05:44:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 05:44:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 05:44:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:20,726 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:44:20,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:20,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883516664] [2023-11-29 05:44:20,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883516664] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:20,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386946783] [2023-11-29 05:44:20,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:20,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:20,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:20,730 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:20,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:44:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:21,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:44:21,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:21,657 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-29 05:44:21,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:21,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386946783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:21,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:21,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-11-29 05:44:21,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152316993] [2023-11-29 05:44:21,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:21,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:44:21,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:21,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:44:21,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:44:21,660 INFO L87 Difference]: Start difference. First operand 567 states and 733 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 05:44:22,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:22,101 INFO L93 Difference]: Finished difference Result 748 states and 991 transitions. [2023-11-29 05:44:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:44:22,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2023-11-29 05:44:22,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:22,106 INFO L225 Difference]: With dead ends: 748 [2023-11-29 05:44:22,106 INFO L226 Difference]: Without dead ends: 718 [2023-11-29 05:44:22,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:44:22,107 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 95 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:22,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 712 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:44:22,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-11-29 05:44:22,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 569. [2023-11-29 05:44:22,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 419 states have (on average 1.2744630071599046) internal successors, (534), 425 states have internal predecessors, (534), 89 states have call successors, (89), 50 states have call predecessors, (89), 60 states have return successors, (112), 93 states have call predecessors, (112), 85 states have call successors, (112) [2023-11-29 05:44:22,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 735 transitions. [2023-11-29 05:44:22,138 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 735 transitions. Word has length 94 [2023-11-29 05:44:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:22,138 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 735 transitions. [2023-11-29 05:44:22,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 05:44:22,138 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 735 transitions. [2023-11-29 05:44:22,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 05:44:22,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:22,140 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:22,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:44:22,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 05:44:22,341 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:22,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:22,341 INFO L85 PathProgramCache]: Analyzing trace with hash 343583211, now seen corresponding path program 1 times [2023-11-29 05:44:22,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:22,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477910236] [2023-11-29 05:44:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:22,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 05:44:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 05:44:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 05:44:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:23,350 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:44:23,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:23,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477910236] [2023-11-29 05:44:23,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477910236] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:23,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928407150] [2023-11-29 05:44:23,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:23,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:23,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:23,352 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:23,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:44:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:24,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:44:24,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:44:24,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:44:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-29 05:44:24,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928407150] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:24,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:44:24,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 5] total 14 [2023-11-29 05:44:24,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928136076] [2023-11-29 05:44:24,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:24,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:44:24,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:24,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:44:24,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:44:24,536 INFO L87 Difference]: Start difference. First operand 569 states and 735 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:44:25,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:25,337 INFO L93 Difference]: Finished difference Result 1641 states and 2127 transitions. [2023-11-29 05:44:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:44:25,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2023-11-29 05:44:25,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:25,345 INFO L225 Difference]: With dead ends: 1641 [2023-11-29 05:44:25,345 INFO L226 Difference]: Without dead ends: 1096 [2023-11-29 05:44:25,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:44:25,348 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 321 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:25,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 618 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:44:25,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2023-11-29 05:44:25,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1062. [2023-11-29 05:44:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 785 states have (on average 1.2751592356687897) internal successors, (1001), 795 states have internal predecessors, (1001), 164 states have call successors, (164), 93 states have call predecessors, (164), 112 states have return successors, (209), 173 states have call predecessors, (209), 160 states have call successors, (209) [2023-11-29 05:44:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1374 transitions. [2023-11-29 05:44:25,427 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1374 transitions. Word has length 95 [2023-11-29 05:44:25,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:25,428 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1374 transitions. [2023-11-29 05:44:25,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:44:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1374 transitions. [2023-11-29 05:44:25,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 05:44:25,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:25,430 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:25,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:44:25,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 05:44:25,631 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:25,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:25,631 INFO L85 PathProgramCache]: Analyzing trace with hash -660863779, now seen corresponding path program 1 times [2023-11-29 05:44:25,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:25,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112064811] [2023-11-29 05:44:25,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:25,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 05:44:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 05:44:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 05:44:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 05:44:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:26,736 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 05:44:26,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:26,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112064811] [2023-11-29 05:44:26,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112064811] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:26,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586165311] [2023-11-29 05:44:26,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:26,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:26,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:26,738 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:26,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:44:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:27,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:44:27,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:27,793 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 05:44:27,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:27,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586165311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:27,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:27,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-11-29 05:44:27,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515378665] [2023-11-29 05:44:27,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:27,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:44:27,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:27,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:44:27,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:44:27,796 INFO L87 Difference]: Start difference. First operand 1062 states and 1374 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 05:44:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:28,165 INFO L93 Difference]: Finished difference Result 1631 states and 2110 transitions. [2023-11-29 05:44:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:44:28,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2023-11-29 05:44:28,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:28,169 INFO L225 Difference]: With dead ends: 1631 [2023-11-29 05:44:28,169 INFO L226 Difference]: Without dead ends: 610 [2023-11-29 05:44:28,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:44:28,172 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 12 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:28,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 549 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:44:28,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-11-29 05:44:28,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 587. [2023-11-29 05:44:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 433 states have (on average 1.2655889145496535) internal successors, (548), 439 states have internal predecessors, (548), 91 states have call successors, (91), 52 states have call predecessors, (91), 62 states have return successors, (113), 95 states have call predecessors, (113), 87 states have call successors, (113) [2023-11-29 05:44:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 752 transitions. [2023-11-29 05:44:28,201 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 752 transitions. Word has length 111 [2023-11-29 05:44:28,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:28,201 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 752 transitions. [2023-11-29 05:44:28,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 05:44:28,202 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 752 transitions. [2023-11-29 05:44:28,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 05:44:28,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:28,203 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:28,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:44:28,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:28,403 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:28,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:28,404 INFO L85 PathProgramCache]: Analyzing trace with hash 232622559, now seen corresponding path program 1 times [2023-11-29 05:44:28,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:28,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146558468] [2023-11-29 05:44:28,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:28,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 05:44:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 05:44:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 05:44:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 05:44:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 05:44:29,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:29,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146558468] [2023-11-29 05:44:29,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146558468] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:29,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456061184] [2023-11-29 05:44:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:29,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:29,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:29,532 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:29,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 05:44:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:30,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 1714 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:44:30,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:30,666 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 05:44:30,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:30,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456061184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:30,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:30,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-11-29 05:44:30,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731807800] [2023-11-29 05:44:30,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:30,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:44:30,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:30,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:44:30,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:44:30,668 INFO L87 Difference]: Start difference. First operand 587 states and 752 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 05:44:30,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:30,918 INFO L93 Difference]: Finished difference Result 1025 states and 1311 transitions. [2023-11-29 05:44:30,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:44:30,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2023-11-29 05:44:30,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:30,923 INFO L225 Difference]: With dead ends: 1025 [2023-11-29 05:44:30,924 INFO L226 Difference]: Without dead ends: 1020 [2023-11-29 05:44:30,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:44:30,925 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 297 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:30,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 280 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:44:30,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2023-11-29 05:44:31,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 998. [2023-11-29 05:44:31,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 730 states have (on average 1.2575342465753425) internal successors, (918), 738 states have internal predecessors, (918), 155 states have call successors, (155), 92 states have call predecessors, (155), 112 states have return successors, (208), 167 states have call predecessors, (208), 151 states have call successors, (208) [2023-11-29 05:44:31,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1281 transitions. [2023-11-29 05:44:31,007 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1281 transitions. Word has length 111 [2023-11-29 05:44:31,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:31,008 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1281 transitions. [2023-11-29 05:44:31,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 05:44:31,009 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1281 transitions. [2023-11-29 05:44:31,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 05:44:31,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:31,010 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:31,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 05:44:31,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:31,211 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:31,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:31,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2099438711, now seen corresponding path program 1 times [2023-11-29 05:44:31,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:31,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438660792] [2023-11-29 05:44:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:31,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 05:44:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 05:44:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 05:44:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 05:44:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 05:44:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 05:44:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:32,164 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:44:32,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:32,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438660792] [2023-11-29 05:44:32,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438660792] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:32,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147769134] [2023-11-29 05:44:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:32,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:32,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:32,166 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:32,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 05:44:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:33,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 1752 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:44:33,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:33,185 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 05:44:33,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:33,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147769134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:33,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:33,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-11-29 05:44:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228191447] [2023-11-29 05:44:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:33,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:44:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:33,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:44:33,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:44:33,188 INFO L87 Difference]: Start difference. First operand 998 states and 1281 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-29 05:44:33,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:33,490 INFO L93 Difference]: Finished difference Result 1150 states and 1497 transitions. [2023-11-29 05:44:33,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:44:33,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 120 [2023-11-29 05:44:33,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:33,497 INFO L225 Difference]: With dead ends: 1150 [2023-11-29 05:44:33,497 INFO L226 Difference]: Without dead ends: 1142 [2023-11-29 05:44:33,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:44:33,498 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 219 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:33,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 408 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:44:33,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2023-11-29 05:44:33,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1002. [2023-11-29 05:44:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 734 states have (on average 1.2561307901907357) internal successors, (922), 742 states have internal predecessors, (922), 155 states have call successors, (155), 92 states have call predecessors, (155), 112 states have return successors, (208), 167 states have call predecessors, (208), 151 states have call successors, (208) [2023-11-29 05:44:33,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1285 transitions. [2023-11-29 05:44:33,571 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1285 transitions. Word has length 120 [2023-11-29 05:44:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:33,571 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 1285 transitions. [2023-11-29 05:44:33,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-29 05:44:33,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1285 transitions. [2023-11-29 05:44:33,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 05:44:33,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:33,573 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:33,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 05:44:33,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:33,773 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:33,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:33,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1535836266, now seen corresponding path program 1 times [2023-11-29 05:44:33,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:33,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891359621] [2023-11-29 05:44:33,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:33,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 05:44:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 05:44:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 05:44:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 05:44:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 05:44:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 05:44:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:34,804 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:44:34,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:34,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891359621] [2023-11-29 05:44:34,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891359621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:34,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553710122] [2023-11-29 05:44:34,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:34,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:34,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:34,805 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:34,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 05:44:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:35,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:44:35,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 05:44:35,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:35,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553710122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:35,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:35,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-11-29 05:44:35,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536965866] [2023-11-29 05:44:35,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:35,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:44:35,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:35,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:44:35,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:44:35,908 INFO L87 Difference]: Start difference. First operand 1002 states and 1285 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 05:44:36,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:36,253 INFO L93 Difference]: Finished difference Result 1946 states and 2505 transitions. [2023-11-29 05:44:36,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:44:36,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 123 [2023-11-29 05:44:36,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:36,258 INFO L225 Difference]: With dead ends: 1946 [2023-11-29 05:44:36,258 INFO L226 Difference]: Without dead ends: 1002 [2023-11-29 05:44:36,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:44:36,261 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 63 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:36,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 387 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:44:36,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2023-11-29 05:44:36,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2023-11-29 05:44:36,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 734 states have (on average 1.2343324250681198) internal successors, (906), 742 states have internal predecessors, (906), 155 states have call successors, (155), 92 states have call predecessors, (155), 112 states have return successors, (208), 167 states have call predecessors, (208), 151 states have call successors, (208) [2023-11-29 05:44:36,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1269 transitions. [2023-11-29 05:44:36,314 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1269 transitions. Word has length 123 [2023-11-29 05:44:36,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:36,315 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 1269 transitions. [2023-11-29 05:44:36,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 05:44:36,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1269 transitions. [2023-11-29 05:44:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 05:44:36,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:36,316 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:36,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 05:44:36,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:36,517 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:36,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:36,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1468492483, now seen corresponding path program 1 times [2023-11-29 05:44:36,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:36,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005950189] [2023-11-29 05:44:36,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:36,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 05:44:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 05:44:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 05:44:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 05:44:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 05:44:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 05:44:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 05:44:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 05:44:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 05:44:37,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:37,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005950189] [2023-11-29 05:44:37,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005950189] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:37,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125386490] [2023-11-29 05:44:37,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:37,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:37,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,471 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 05:44:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 05:44:38,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:38,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125386490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:38,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:38,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2023-11-29 05:44:38,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287077252] [2023-11-29 05:44:38,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:38,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:44:38,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:38,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:44:38,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:44:38,625 INFO L87 Difference]: Start difference. First operand 1002 states and 1269 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 05:44:39,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:39,368 INFO L93 Difference]: Finished difference Result 1983 states and 2521 transitions. [2023-11-29 05:44:39,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:44:39,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2023-11-29 05:44:39,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:39,373 INFO L225 Difference]: With dead ends: 1983 [2023-11-29 05:44:39,373 INFO L226 Difference]: Without dead ends: 1033 [2023-11-29 05:44:39,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:44:39,375 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 13 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:39,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1488 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:44:39,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2023-11-29 05:44:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1010. [2023-11-29 05:44:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 742 states have (on average 1.2304582210242587) internal successors, (913), 746 states have internal predecessors, (913), 155 states have call successors, (155), 92 states have call predecessors, (155), 112 states have return successors, (208), 171 states have call predecessors, (208), 151 states have call successors, (208) [2023-11-29 05:44:39,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1276 transitions. [2023-11-29 05:44:39,428 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1276 transitions. Word has length 134 [2023-11-29 05:44:39,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:39,429 INFO L495 AbstractCegarLoop]: Abstraction has 1010 states and 1276 transitions. [2023-11-29 05:44:39,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 05:44:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1276 transitions. [2023-11-29 05:44:39,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 05:44:39,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:39,432 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:39,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 05:44:39,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:39,632 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:39,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:39,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1024881060, now seen corresponding path program 2 times [2023-11-29 05:44:39,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:39,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231929557] [2023-11-29 05:44:39,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:39,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 05:44:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 05:44:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 05:44:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 05:44:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 05:44:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 05:44:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 05:44:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 05:44:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,551 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 05:44:40,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:40,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231929557] [2023-11-29 05:44:40,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231929557] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:40,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620533250] [2023-11-29 05:44:40,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:44:40,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:40,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:40,553 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:40,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 05:44:41,588 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 05:44:41,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:44:41,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 1498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:44:41,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:41,614 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 05:44:41,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:41,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620533250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:41,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:41,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-11-29 05:44:41,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830116322] [2023-11-29 05:44:41,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:41,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:44:41,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:41,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:44:41,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:44:41,617 INFO L87 Difference]: Start difference. First operand 1010 states and 1276 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 05:44:41,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:41,857 INFO L93 Difference]: Finished difference Result 1962 states and 2488 transitions. [2023-11-29 05:44:41,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:44:41,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 134 [2023-11-29 05:44:41,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:41,862 INFO L225 Difference]: With dead ends: 1962 [2023-11-29 05:44:41,862 INFO L226 Difference]: Without dead ends: 1010 [2023-11-29 05:44:41,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:44:41,865 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 13 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:41,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 328 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:44:41,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2023-11-29 05:44:41,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1010. [2023-11-29 05:44:41,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 742 states have (on average 1.2277628032345014) internal successors, (911), 746 states have internal predecessors, (911), 155 states have call successors, (155), 92 states have call predecessors, (155), 112 states have return successors, (208), 171 states have call predecessors, (208), 151 states have call successors, (208) [2023-11-29 05:44:41,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1274 transitions. [2023-11-29 05:44:41,916 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1274 transitions. Word has length 134 [2023-11-29 05:44:41,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:41,917 INFO L495 AbstractCegarLoop]: Abstraction has 1010 states and 1274 transitions. [2023-11-29 05:44:41,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 05:44:41,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1274 transitions. [2023-11-29 05:44:41,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 05:44:41,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:41,918 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:41,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 05:44:42,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:42,119 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:42,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:42,119 INFO L85 PathProgramCache]: Analyzing trace with hash -717574273, now seen corresponding path program 1 times [2023-11-29 05:44:42,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:42,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876013996] [2023-11-29 05:44:42,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:42,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:42,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:42,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:42,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:42,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:44:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:42,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 05:44:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 05:44:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 05:44:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 05:44:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 05:44:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 05:44:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 05:44:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 05:44:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 05:44:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 05:44:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 05:44:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 05:44:43,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:43,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876013996] [2023-11-29 05:44:43,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876013996] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:43,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140129605] [2023-11-29 05:44:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:43,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:43,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:43,055 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:43,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 05:44:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:44,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 05:44:44,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:44,219 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 05:44:44,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:44:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 05:44:44,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140129605] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:44:44,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:44:44,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 13 [2023-11-29 05:44:44,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723750518] [2023-11-29 05:44:44,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:44:44,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:44:44,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:44,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:44:44,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:44:44,365 INFO L87 Difference]: Start difference. First operand 1010 states and 1274 transitions. Second operand has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (38), 6 states have call predecessors, (38), 5 states have return successors, (31), 6 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-29 05:44:46,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:46,051 INFO L93 Difference]: Finished difference Result 2152 states and 2774 transitions. [2023-11-29 05:44:46,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 05:44:46,052 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (38), 6 states have call predecessors, (38), 5 states have return successors, (31), 6 states have call predecessors, (31), 5 states have call successors, (31) Word has length 135 [2023-11-29 05:44:46,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:46,057 INFO L225 Difference]: With dead ends: 2152 [2023-11-29 05:44:46,057 INFO L226 Difference]: Without dead ends: 1104 [2023-11-29 05:44:46,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2023-11-29 05:44:46,060 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 155 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:46,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1235 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 05:44:46,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2023-11-29 05:44:46,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1068. [2023-11-29 05:44:46,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 779 states have (on average 1.2053915275994864) internal successors, (939), 779 states have internal predecessors, (939), 163 states have call successors, (163), 92 states have call predecessors, (163), 125 states have return successors, (245), 196 states have call predecessors, (245), 159 states have call successors, (245) [2023-11-29 05:44:46,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1347 transitions. [2023-11-29 05:44:46,152 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1347 transitions. Word has length 135 [2023-11-29 05:44:46,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:46,152 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1347 transitions. [2023-11-29 05:44:46,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (38), 6 states have call predecessors, (38), 5 states have return successors, (31), 6 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-29 05:44:46,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1347 transitions. [2023-11-29 05:44:46,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 05:44:46,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:46,153 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:46,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 05:44:46,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:46,354 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:46,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:46,354 INFO L85 PathProgramCache]: Analyzing trace with hash -691934561, now seen corresponding path program 1 times [2023-11-29 05:44:46,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:46,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936561575] [2023-11-29 05:44:46,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:46,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 05:44:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 05:44:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 05:44:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 05:44:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:44:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 05:44:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 05:44:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 05:44:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 05:44:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 05:44:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 05:44:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 05:44:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-29 05:44:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:44:47,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:47,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936561575] [2023-11-29 05:44:47,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936561575] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:47,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:44:47,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:44:47,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103143499] [2023-11-29 05:44:47,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:47,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:44:47,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:47,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:44:47,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:44:47,219 INFO L87 Difference]: Start difference. First operand 1068 states and 1347 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 05:44:47,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:47,918 INFO L93 Difference]: Finished difference Result 1709 states and 2166 transitions. [2023-11-29 05:44:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:44:47,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 137 [2023-11-29 05:44:47,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:47,922 INFO L225 Difference]: With dead ends: 1709 [2023-11-29 05:44:47,923 INFO L226 Difference]: Without dead ends: 701 [2023-11-29 05:44:47,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:44:47,925 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 171 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:47,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 504 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:44:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-11-29 05:44:47,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 685. [2023-11-29 05:44:47,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 504 states have (on average 1.2083333333333333) internal successors, (609), 504 states have internal predecessors, (609), 105 states have call successors, (105), 62 states have call predecessors, (105), 75 states have return successors, (140), 118 states have call predecessors, (140), 101 states have call successors, (140) [2023-11-29 05:44:47,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 854 transitions. [2023-11-29 05:44:47,966 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 854 transitions. Word has length 137 [2023-11-29 05:44:47,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:47,966 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 854 transitions. [2023-11-29 05:44:47,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 05:44:47,966 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 854 transitions. [2023-11-29 05:44:47,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 05:44:47,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:47,968 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:47,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 05:44:47,968 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:47,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:47,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1057856965, now seen corresponding path program 1 times [2023-11-29 05:44:47,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:47,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297275859] [2023-11-29 05:44:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:47,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:48,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:48,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:48,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 05:44:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:48,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 05:44:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 05:44:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 05:44:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:44:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 05:44:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 05:44:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 05:44:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 05:44:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 05:44:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 05:44:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-29 05:44:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 05:44:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 05:44:49,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:49,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297275859] [2023-11-29 05:44:49,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297275859] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:49,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458609868] [2023-11-29 05:44:49,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:49,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:49,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:49,160 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:49,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 05:44:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:50,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:44:50,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:50,626 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:44:50,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:50,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458609868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:50,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:50,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-11-29 05:44:50,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331582808] [2023-11-29 05:44:50,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:50,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:44:50,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:50,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:44:50,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:44:50,629 INFO L87 Difference]: Start difference. First operand 685 states and 854 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 05:44:51,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:51,169 INFO L93 Difference]: Finished difference Result 1284 states and 1615 transitions. [2023-11-29 05:44:51,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:44:51,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2023-11-29 05:44:51,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:51,174 INFO L225 Difference]: With dead ends: 1284 [2023-11-29 05:44:51,174 INFO L226 Difference]: Without dead ends: 627 [2023-11-29 05:44:51,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:44:51,176 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 147 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:51,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 447 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:44:51,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2023-11-29 05:44:51,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 580. [2023-11-29 05:44:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 430 states have (on average 1.2093023255813953) internal successors, (520), 432 states have internal predecessors, (520), 88 states have call successors, (88), 50 states have call predecessors, (88), 61 states have return successors, (117), 97 states have call predecessors, (117), 85 states have call successors, (117) [2023-11-29 05:44:51,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 725 transitions. [2023-11-29 05:44:51,228 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 725 transitions. Word has length 139 [2023-11-29 05:44:51,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:51,229 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 725 transitions. [2023-11-29 05:44:51,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 05:44:51,229 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 725 transitions. [2023-11-29 05:44:51,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 05:44:51,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:51,230 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:51,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:51,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:51,431 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:51,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:51,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1598115344, now seen corresponding path program 1 times [2023-11-29 05:44:51,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:51,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323938294] [2023-11-29 05:44:51,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:51,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 05:44:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 05:44:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 05:44:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 05:44:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:44:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 05:44:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 05:44:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 05:44:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 05:44:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 05:44:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 05:44:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-29 05:44:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 05:44:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:44:52,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:52,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323938294] [2023-11-29 05:44:52,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323938294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:52,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:44:52,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:44:52,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34769355] [2023-11-29 05:44:52,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:52,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:44:52,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:52,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:44:52,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:44:52,319 INFO L87 Difference]: Start difference. First operand 580 states and 725 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 05:44:53,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:53,007 INFO L93 Difference]: Finished difference Result 608 states and 750 transitions. [2023-11-29 05:44:53,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:44:53,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 140 [2023-11-29 05:44:53,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:53,010 INFO L225 Difference]: With dead ends: 608 [2023-11-29 05:44:53,010 INFO L226 Difference]: Without dead ends: 248 [2023-11-29 05:44:53,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:44:53,012 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 117 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:53,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 515 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:44:53,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-29 05:44:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 229. [2023-11-29 05:44:53,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 168 states have (on average 1.1785714285714286) internal successors, (198), 171 states have internal predecessors, (198), 35 states have call successors, (35), 23 states have call predecessors, (35), 25 states have return successors, (38), 34 states have call predecessors, (38), 33 states have call successors, (38) [2023-11-29 05:44:53,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 271 transitions. [2023-11-29 05:44:53,032 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 271 transitions. Word has length 140 [2023-11-29 05:44:53,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:53,032 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 271 transitions. [2023-11-29 05:44:53,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 05:44:53,033 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 271 transitions. [2023-11-29 05:44:53,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 05:44:53,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:44:53,034 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:44:53,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 05:44:53,035 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:44:53,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:53,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1035021478, now seen corresponding path program 1 times [2023-11-29 05:44:53,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:53,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778529942] [2023-11-29 05:44:53,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:53,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:53,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:44:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:53,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 05:44:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:53,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 05:44:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 05:44:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 05:44:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 05:44:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:44:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:44:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 05:44:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 05:44:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 05:44:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 05:44:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 05:44:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 05:44:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 05:44:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-29 05:44:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-29 05:44:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:44:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:54,169 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 05:44:54,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:54,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778529942] [2023-11-29 05:44:54,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778529942] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:54,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759074095] [2023-11-29 05:44:54,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:54,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:54,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:54,171 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:54,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 05:44:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:55,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 1950 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:44:55,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:55,453 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:44:55,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:44:55,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759074095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:55,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:44:55,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-11-29 05:44:55,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277230934] [2023-11-29 05:44:55,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:55,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:44:55,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:55,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:44:55,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:44:55,456 INFO L87 Difference]: Start difference. First operand 229 states and 271 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-29 05:44:55,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:55,739 INFO L93 Difference]: Finished difference Result 235 states and 276 transitions. [2023-11-29 05:44:55,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:44:55,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 166 [2023-11-29 05:44:55,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:44:55,740 INFO L225 Difference]: With dead ends: 235 [2023-11-29 05:44:55,740 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 05:44:55,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:44:55,742 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 61 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:44:55,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 521 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:44:55,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 05:44:55,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 05:44:55,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:44:55,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 05:44:55,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2023-11-29 05:44:55,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:44:55,743 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:44:55,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-29 05:44:55,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:44:55,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 05:44:55,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 05:44:55,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 05:44:55,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:55,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 05:45:21,009 WARN L293 SmtUtils]: Spent 24.10s on a formula simplification. DAG size of input: 45 DAG size of output: 36 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 05:45:21,459 INFO L899 garLoopResultBuilder]: For program point kbtab_initEXIT(lines 3909 3925) no Hoare annotation was computed. [2023-11-29 05:45:21,459 INFO L899 garLoopResultBuilder]: For program point L3922(lines 3911 3924) no Hoare annotation was computed. [2023-11-29 05:45:21,460 INFO L902 garLoopResultBuilder]: At program point L3920(line 3920) the Hoare annotation is: true [2023-11-29 05:45:21,460 INFO L899 garLoopResultBuilder]: For program point L3920-1(line 3920) no Hoare annotation was computed. [2023-11-29 05:45:21,460 INFO L899 garLoopResultBuilder]: For program point L3915(lines 3915 3918) no Hoare annotation was computed. [2023-11-29 05:45:21,460 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3909 3925) the Hoare annotation is: true [2023-11-29 05:45:21,460 INFO L899 garLoopResultBuilder]: For program point L4210-1(line 4210) no Hoare annotation was computed. [2023-11-29 05:45:21,460 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 4209 4211) the Hoare annotation is: (or (not (= ~ldv_urb_state~0 1)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) (not (= ~ldv_coherent_state~0 1)) (not (= 0 ~res_kbtab_probe_3~0))) [2023-11-29 05:45:21,460 INFO L895 garLoopResultBuilder]: At program point L4210(line 4210) the Hoare annotation is: (or (not (= ~ldv_urb_state~0 1)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) (not (= ~ldv_coherent_state~0 1)) (not (= 0 ~res_kbtab_probe_3~0))) [2023-11-29 05:45:21,461 INFO L899 garLoopResultBuilder]: For program point dev_get_drvdataEXIT(lines 4209 4211) no Hoare annotation was computed. [2023-11-29 05:45:21,461 INFO L899 garLoopResultBuilder]: For program point input_set_abs_paramsEXIT(lines 4226 4228) no Hoare annotation was computed. [2023-11-29 05:45:21,461 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4226 4228) the Hoare annotation is: true [2023-11-29 05:45:21,461 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3928 3936) the Hoare annotation is: true [2023-11-29 05:45:21,461 INFO L899 garLoopResultBuilder]: For program point kbtab_exitEXIT(lines 3928 3936) no Hoare annotation was computed. [2023-11-29 05:45:21,461 INFO L899 garLoopResultBuilder]: For program point L4117(lines 4093 4122) no Hoare annotation was computed. [2023-11-29 05:45:21,461 INFO L899 garLoopResultBuilder]: For program point L4109-1(lines 4106 4111) no Hoare annotation was computed. [2023-11-29 05:45:21,461 INFO L895 garLoopResultBuilder]: At program point L4109(line 4109) the Hoare annotation is: (or (not (= ~ldv_urb_state~0 0)) (not (= |old(~ldv_coherent_state~0)| 1))) [2023-11-29 05:45:21,462 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 4093 4122) the Hoare annotation is: (or (= ~ldv_coherent_state~0 1) (not (= ~ldv_urb_state~0 0)) (not (= |old(~ldv_coherent_state~0)| 1))) [2023-11-29 05:45:21,462 INFO L899 garLoopResultBuilder]: For program point usb_free_coherentEXIT(lines 4093 4122) no Hoare annotation was computed. [2023-11-29 05:45:21,462 INFO L895 garLoopResultBuilder]: At program point $Ultimate##5(lines 4097 4116) the Hoare annotation is: (or (not (= ~ldv_urb_state~0 0)) (and (= ~ldv_coherent_state~0 1) (= |usb_free_coherent_#in~addr.base| usb_free_coherent_~addr.base) (= |usb_free_coherent_#in~addr.offset| usb_free_coherent_~addr.offset)) (not (= |old(~ldv_coherent_state~0)| 1))) [2023-11-29 05:45:21,462 INFO L902 garLoopResultBuilder]: At program point L4101(line 4101) the Hoare annotation is: true [2023-11-29 05:45:21,462 INFO L899 garLoopResultBuilder]: For program point L4099(lines 4097 4116) no Hoare annotation was computed. [2023-11-29 05:45:21,462 INFO L899 garLoopResultBuilder]: For program point L4106(lines 4106 4111) no Hoare annotation was computed. [2023-11-29 05:45:21,462 INFO L899 garLoopResultBuilder]: For program point L4098(lines 4097 4116) no Hoare annotation was computed. [2023-11-29 05:45:21,462 INFO L902 garLoopResultBuilder]: At program point L4158(line 4158) the Hoare annotation is: true [2023-11-29 05:45:21,463 INFO L899 garLoopResultBuilder]: For program point L4156(lines 4154 4173) no Hoare annotation was computed. [2023-11-29 05:45:21,463 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 4150 4179) the Hoare annotation is: (or (= ~ldv_urb_state~0 1) (not (= 1 |old(~ldv_urb_state~0)|)) (not (= ~ldv_coherent_state~0 1)) (not (= 0 ~res_kbtab_probe_3~0))) [2023-11-29 05:45:21,463 INFO L899 garLoopResultBuilder]: For program point usb_free_urbEXIT(lines 4150 4179) no Hoare annotation was computed. [2023-11-29 05:45:21,463 INFO L895 garLoopResultBuilder]: At program point $Ultimate##5(lines 4154 4173) the Hoare annotation is: (or (= ~ldv_urb_state~0 1) (not (= 1 |old(~ldv_urb_state~0)|)) (not (= ~ldv_coherent_state~0 1)) (not (= 0 ~res_kbtab_probe_3~0))) [2023-11-29 05:45:21,463 INFO L899 garLoopResultBuilder]: For program point L4163(lines 4163 4168) no Hoare annotation was computed. [2023-11-29 05:45:21,463 INFO L899 garLoopResultBuilder]: For program point L4155(lines 4154 4173) no Hoare annotation was computed. [2023-11-29 05:45:21,463 INFO L899 garLoopResultBuilder]: For program point L4174(lines 4150 4179) no Hoare annotation was computed. [2023-11-29 05:45:21,463 INFO L895 garLoopResultBuilder]: At program point L4166(line 4166) the Hoare annotation is: (or (not (= 1 |old(~ldv_urb_state~0)|)) (not (= ~ldv_coherent_state~0 1)) (not (= 0 ~res_kbtab_probe_3~0))) [2023-11-29 05:45:21,464 INFO L899 garLoopResultBuilder]: For program point L4166-1(lines 4163 4168) no Hoare annotation was computed. [2023-11-29 05:45:21,464 INFO L899 garLoopResultBuilder]: For program point L4203(line 4203) no Hoare annotation was computed. [2023-11-29 05:45:21,464 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 4201 4205) the Hoare annotation is: (or (< ~ldv_urb_state~0 0) (< ~ldv_coherent_state~0 0) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) (not (= 0 ~res_kbtab_probe_3~0))) [2023-11-29 05:45:21,464 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 4201 4205) no Hoare annotation was computed. [2023-11-29 05:45:21,464 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 4201 4205) no Hoare annotation was computed. [2023-11-29 05:45:21,464 INFO L899 garLoopResultBuilder]: For program point ldv_blast_assertEXIT(lines 4046 4051) no Hoare annotation was computed. [2023-11-29 05:45:21,464 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 4046 4051) the Hoare annotation is: true [2023-11-29 05:45:21,465 INFO L899 garLoopResultBuilder]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4049) no Hoare annotation was computed. [2023-11-29 05:45:21,465 INFO L899 garLoopResultBuilder]: For program point dev_set_drvdataEXIT(lines 4213 4215) no Hoare annotation was computed. [2023-11-29 05:45:21,465 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4213 4215) the Hoare annotation is: true [2023-11-29 05:45:21,465 INFO L899 garLoopResultBuilder]: For program point kfreeEXIT(lines 4264 4266) no Hoare annotation was computed. [2023-11-29 05:45:21,465 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 4264 4266) the Hoare annotation is: (or (not (= ~ldv_coherent_state~0 0)) (not (= ~ldv_urb_state~0 0)) (= |old(#valid)| |#valid|)) [2023-11-29 05:45:21,465 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4242 4244) the Hoare annotation is: true [2023-11-29 05:45:21,465 INFO L899 garLoopResultBuilder]: For program point printkEXIT(lines 4242 4244) no Hoare annotation was computed. [2023-11-29 05:45:21,466 INFO L895 garLoopResultBuilder]: At program point L4207(line 4207) the Hoare annotation is: (or (not (= ~ldv_coherent_state~0 0)) (not (= ~ldv_urb_state~0 0)) (not (= 0 ~res_kbtab_probe_3~0)) (and (= |old(#length)| |#length|) (or (= |kzalloc_~flags#1| 208) (= |kzalloc_#in~flags#1| |kzalloc_~flags#1|)) (= |old(#valid)| |#valid|))) [2023-11-29 05:45:21,466 INFO L899 garLoopResultBuilder]: For program point L3409(line 3409) no Hoare annotation was computed. [2023-11-29 05:45:21,466 INFO L899 garLoopResultBuilder]: For program point L4207-1(line 4207) no Hoare annotation was computed. [2023-11-29 05:45:21,466 INFO L899 garLoopResultBuilder]: For program point L3409-2(line 3409) no Hoare annotation was computed. [2023-11-29 05:45:21,466 INFO L899 garLoopResultBuilder]: For program point L3409-4(line 3409) no Hoare annotation was computed. [2023-11-29 05:45:21,466 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 3405 3413) the Hoare annotation is: (or (not (= ~ldv_coherent_state~0 0)) (not (= ~ldv_urb_state~0 0)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) (not (= 0 ~res_kbtab_probe_3~0))) [2023-11-29 05:45:21,466 INFO L899 garLoopResultBuilder]: For program point kzallocEXIT(lines 3405 3413) no Hoare annotation was computed. [2023-11-29 05:45:21,466 INFO L902 garLoopResultBuilder]: At program point LDV_STOP(lines 4055 4061) the Hoare annotation is: true [2023-11-29 05:45:21,467 INFO L899 garLoopResultBuilder]: For program point ldv_assume_stopEXIT(lines 4055 4061) no Hoare annotation was computed. [2023-11-29 05:45:21,467 INFO L899 garLoopResultBuilder]: For program point L3437-1(line 3437) no Hoare annotation was computed. [2023-11-29 05:45:21,467 INFO L902 garLoopResultBuilder]: At program point L3437(line 3437) the Hoare annotation is: true [2023-11-29 05:45:21,467 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 3433 3441) the Hoare annotation is: true [2023-11-29 05:45:21,467 INFO L899 garLoopResultBuilder]: For program point usb_set_intfdataEXIT(lines 3433 3441) no Hoare annotation was computed. [2023-11-29 05:45:21,467 INFO L899 garLoopResultBuilder]: For program point L4239(line 4239) no Hoare annotation was computed. [2023-11-29 05:45:21,468 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 4238 4240) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_urb_state~0 0))) (.cse1 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) (.cse2 (not (= 0 ~res_kbtab_probe_3~0)))) (and (or .cse0 .cse1 (not (= ~ldv_coherent_state~0 1)) .cse2 (and (forall ((|v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.base_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset_BEFORE_CALL_1| Int)) (= (select (select |#memory_$Pointer$#3.offset| |v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.base_BEFORE_CALL_1|) |v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset_BEFORE_CALL_1|) 0)) (forall ((|v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.base_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset_BEFORE_CALL_1| Int)) (= (select (select |#memory_$Pointer$#3.base| |v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.base_BEFORE_CALL_1|) |v_ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset_BEFORE_CALL_1|) 0)))) (or (not (= ~ldv_coherent_state~0 0)) .cse0 .cse1 .cse2))) [2023-11-29 05:45:21,468 INFO L899 garLoopResultBuilder]: For program point ldv_undefined_pointerEXIT(lines 4238 4240) no Hoare annotation was computed. [2023-11-29 05:45:21,468 INFO L895 garLoopResultBuilder]: At program point L4032(lines 3968 4044) the Hoare annotation is: (and (= ~ldv_coherent_state~0 0) (= ~ldv_urb_state~0 0)) [2023-11-29 05:45:21,468 INFO L899 garLoopResultBuilder]: For program point L3487(lines 3487 3494) no Hoare annotation was computed. [2023-11-29 05:45:21,468 INFO L895 garLoopResultBuilder]: At program point L3454-1(line 3454) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,468 INFO L899 garLoopResultBuilder]: For program point L3867(lines 3793 3873) no Hoare annotation was computed. [2023-11-29 05:45:21,468 INFO L895 garLoopResultBuilder]: At program point L3884(line 3884) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (<= 1 |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1|) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1)) [2023-11-29 05:45:21,469 INFO L899 garLoopResultBuilder]: For program point L3851(lines 3851 3854) no Hoare annotation was computed. [2023-11-29 05:45:21,469 INFO L899 garLoopResultBuilder]: For program point L3884-1(line 3884) no Hoare annotation was computed. [2023-11-29 05:45:21,469 INFO L899 garLoopResultBuilder]: For program point L4132(line 4132) no Hoare annotation was computed. [2023-11-29 05:45:21,469 INFO L899 garLoopResultBuilder]: For program point L3488(line 3488) no Hoare annotation was computed. [2023-11-29 05:45:21,469 INFO L899 garLoopResultBuilder]: For program point L3488-2(line 3488) no Hoare annotation was computed. [2023-11-29 05:45:21,469 INFO L899 garLoopResultBuilder]: For program point L3802(lines 3802 3808) no Hoare annotation was computed. [2023-11-29 05:45:21,469 INFO L899 garLoopResultBuilder]: For program point L3885-1(line 3885) no Hoare annotation was computed. [2023-11-29 05:45:21,469 INFO L895 garLoopResultBuilder]: At program point L3885(line 3885) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (<= 1 |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1|) (= ~ldv_urb_state~0 0) (= ~ldv_coherent_state~0 1)) [2023-11-29 05:45:21,470 INFO L899 garLoopResultBuilder]: For program point L3456(lines 3456 3460) no Hoare annotation was computed. [2023-11-29 05:45:21,470 INFO L899 garLoopResultBuilder]: For program point L3456-2(lines 3456 3460) no Hoare annotation was computed. [2023-11-29 05:45:21,470 INFO L899 garLoopResultBuilder]: For program point L3836(line 3836) no Hoare annotation was computed. [2023-11-29 05:45:21,470 INFO L899 garLoopResultBuilder]: For program point L3836-2(line 3836) no Hoare annotation was computed. [2023-11-29 05:45:21,470 INFO L899 garLoopResultBuilder]: For program point L3836-4(line 3836) no Hoare annotation was computed. [2023-11-29 05:45:21,470 INFO L899 garLoopResultBuilder]: For program point L3985(lines 3985 3990) no Hoare annotation was computed. [2023-11-29 05:45:21,470 INFO L895 garLoopResultBuilder]: At program point L3886(line 3886) the Hoare annotation is: (and (= ~ldv_coherent_state~0 0) (= 0 ~res_kbtab_probe_3~0) (<= 1 |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1|) (= ~ldv_urb_state~0 0)) [2023-11-29 05:45:21,470 INFO L899 garLoopResultBuilder]: For program point L3820(lines 3820 3823) no Hoare annotation was computed. [2023-11-29 05:45:21,471 INFO L899 garLoopResultBuilder]: For program point L3886-1(lines 3875 3890) no Hoare annotation was computed. [2023-11-29 05:45:21,471 INFO L899 garLoopResultBuilder]: For program point L3490(lines 3490 3494) no Hoare annotation was computed. [2023-11-29 05:45:21,471 INFO L899 garLoopResultBuilder]: For program point L3490-2(lines 3487 3494) no Hoare annotation was computed. [2023-11-29 05:45:21,471 INFO L895 garLoopResultBuilder]: At program point L3870(line 3870) the Hoare annotation is: (let ((.cse0 (= ~ldv_coherent_state~0 0)) (.cse1 (= ~ldv_urb_state~0 0)) (.cse2 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0))) (or (and .cse0 .cse1 .cse2 (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) (and .cse0 (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| 0)) (= 0 ~res_kbtab_probe_3~0) .cse1 .cse2))) [2023-11-29 05:45:21,471 INFO L899 garLoopResultBuilder]: For program point L3837(line 3837) no Hoare annotation was computed. [2023-11-29 05:45:21,471 INFO L899 garLoopResultBuilder]: For program point L3870-1(line 3870) no Hoare annotation was computed. [2023-11-29 05:45:21,471 INFO L899 garLoopResultBuilder]: For program point L3837-2(line 3837) no Hoare annotation was computed. [2023-11-29 05:45:21,472 INFO L899 garLoopResultBuilder]: For program point L4184(lines 4184 4189) no Hoare annotation was computed. [2023-11-29 05:45:21,472 INFO L899 garLoopResultBuilder]: For program point L3837-4(line 3837) no Hoare annotation was computed. [2023-11-29 05:45:21,472 INFO L899 garLoopResultBuilder]: For program point L4135(lines 4135 4138) no Hoare annotation was computed. [2023-11-29 05:45:21,472 INFO L899 garLoopResultBuilder]: For program point L3491(line 3491) no Hoare annotation was computed. [2023-11-29 05:45:21,472 INFO L899 garLoopResultBuilder]: For program point L3491-2(line 3491) no Hoare annotation was computed. [2023-11-29 05:45:21,472 INFO L899 garLoopResultBuilder]: For program point L3838(line 3838) no Hoare annotation was computed. [2023-11-29 05:45:21,472 INFO L899 garLoopResultBuilder]: For program point L3838-2(line 3838) no Hoare annotation was computed. [2023-11-29 05:45:21,472 INFO L899 garLoopResultBuilder]: For program point L3805(lines 3805 3808) no Hoare annotation was computed. [2023-11-29 05:45:21,473 INFO L899 garLoopResultBuilder]: For program point L3838-4(line 3838) no Hoare annotation was computed. [2023-11-29 05:45:21,473 INFO L899 garLoopResultBuilder]: For program point L4086(lines 4070 4090) no Hoare annotation was computed. [2023-11-29 05:45:21,473 INFO L899 garLoopResultBuilder]: For program point L3987-1(lines 3985 3990) no Hoare annotation was computed. [2023-11-29 05:45:21,473 INFO L899 garLoopResultBuilder]: For program point L3987(lines 3987 3990) no Hoare annotation was computed. [2023-11-29 05:45:21,473 INFO L899 garLoopResultBuilder]: For program point L4037(lines 3968 4044) no Hoare annotation was computed. [2023-11-29 05:45:21,473 INFO L895 garLoopResultBuilder]: At program point L3426(line 3426) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (<= 1 |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1|) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1)) [2023-11-29 05:45:21,473 INFO L899 garLoopResultBuilder]: For program point L3426-1(line 3426) no Hoare annotation was computed. [2023-11-29 05:45:21,473 INFO L895 garLoopResultBuilder]: At program point L3839-1(line 3839) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,474 INFO L895 garLoopResultBuilder]: At program point L3839(line 3839) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,474 INFO L899 garLoopResultBuilder]: For program point L3509(line 3509) no Hoare annotation was computed. [2023-11-29 05:45:21,474 INFO L899 garLoopResultBuilder]: For program point L3509-2(line 3509) no Hoare annotation was computed. [2023-11-29 05:45:21,474 INFO L895 garLoopResultBuilder]: At program point L3856(line 3856) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0)) [2023-11-29 05:45:21,474 INFO L899 garLoopResultBuilder]: For program point L3509-4(line 3509) no Hoare annotation was computed. [2023-11-29 05:45:21,474 INFO L899 garLoopResultBuilder]: For program point L3856-1(line 3856) no Hoare annotation was computed. [2023-11-29 05:45:21,474 INFO L899 garLoopResultBuilder]: For program point kbtab_probe_returnLabel#1(lines 3782 3874) no Hoare annotation was computed. [2023-11-29 05:45:21,475 INFO L895 garLoopResultBuilder]: At program point L3972(line 3972) the Hoare annotation is: (and (= ~ldv_coherent_state~0 0) (= 0 ~res_kbtab_probe_3~0) (= ~ldv_urb_state~0 0)) [2023-11-29 05:45:21,475 INFO L899 garLoopResultBuilder]: For program point L3972-1(line 3972) no Hoare annotation was computed. [2023-11-29 05:45:21,475 INFO L895 garLoopResultBuilder]: At program point L3840(line 3840) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,475 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 05:45:21,475 INFO L899 garLoopResultBuilder]: For program point L4187-1(lines 4183 4197) no Hoare annotation was computed. [2023-11-29 05:45:21,475 INFO L895 garLoopResultBuilder]: At program point L4187(line 4187) the Hoare annotation is: false [2023-11-29 05:45:21,475 INFO L899 garLoopResultBuilder]: For program point L3841(line 3841) no Hoare annotation was computed. [2023-11-29 05:45:21,475 INFO L899 garLoopResultBuilder]: For program point usb_alloc_coherent_returnLabel#1(lines 4066 4091) no Hoare annotation was computed. [2023-11-29 05:45:21,475 INFO L895 garLoopResultBuilder]: At program point L4073(line 4073) the Hoare annotation is: (and (= ~ldv_coherent_state~0 0) (= 0 ~res_kbtab_probe_3~0) (= ~ldv_urb_state~0 0) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,475 INFO L899 garLoopResultBuilder]: For program point L3974(lines 3974 3977) no Hoare annotation was computed. [2023-11-29 05:45:21,475 INFO L895 garLoopResultBuilder]: At program point $Ultimate##39(lines 4129 4142) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (= ~ldv_urb_state~0 0) (= ~ldv_coherent_state~0 1) (or (not (= (select (select |#memory_$Pointer$#3.base| |ULTIMATE.start_kbtab_probe_~kbtab~3#1.base|) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$#3.offset| |ULTIMATE.start_kbtab_probe_~kbtab~3#1.base|) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset|) 0))) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,476 INFO L899 garLoopResultBuilder]: For program point L3529-1(line 3529) no Hoare annotation was computed. [2023-11-29 05:45:21,476 INFO L899 garLoopResultBuilder]: For program point L4008(lines 4008 4011) no Hoare annotation was computed. [2023-11-29 05:45:21,476 INFO L895 garLoopResultBuilder]: At program point L3529(line 3529) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,476 INFO L895 garLoopResultBuilder]: At program point $Ultimate##30(lines 4072 4085) the Hoare annotation is: (and (= ~ldv_coherent_state~0 0) (= 0 ~res_kbtab_probe_3~0) (= ~ldv_urb_state~0 0) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,476 INFO L895 garLoopResultBuilder]: At program point $Ultimate##7(lines 3980 4031) the Hoare annotation is: (let ((.cse0 (= 0 ~res_kbtab_probe_3~0))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1|) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1)) (and (= ~ldv_coherent_state~0 0) .cse0 (= ~ldv_urb_state~0 0) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0)))) [2023-11-29 05:45:21,476 INFO L899 garLoopResultBuilder]: For program point L3513-1(line 3513) no Hoare annotation was computed. [2023-11-29 05:45:21,476 INFO L895 garLoopResultBuilder]: At program point L3513(line 3513) the Hoare annotation is: (and (= ~ldv_coherent_state~0 0) (= 0 ~res_kbtab_probe_3~0) (= ~ldv_urb_state~0 0) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,476 INFO L899 garLoopResultBuilder]: For program point L4075(line 4075) no Hoare annotation was computed. [2023-11-29 05:45:21,476 INFO L899 garLoopResultBuilder]: For program point $Ultimate##21(lines 4003 4014) no Hoare annotation was computed. [2023-11-29 05:45:21,477 INFO L899 garLoopResultBuilder]: For program point L3844(line 3844) no Hoare annotation was computed. [2023-11-29 05:45:21,477 INFO L899 garLoopResultBuilder]: For program point L3844-2(line 3844) no Hoare annotation was computed. [2023-11-29 05:45:21,477 INFO L899 garLoopResultBuilder]: For program point L3844-4(line 3844) no Hoare annotation was computed. [2023-11-29 05:45:21,477 INFO L899 garLoopResultBuilder]: For program point L3844-6(line 3844) no Hoare annotation was computed. [2023-11-29 05:45:21,477 INFO L899 garLoopResultBuilder]: For program point L3844-8(line 3844) no Hoare annotation was computed. [2023-11-29 05:45:21,477 INFO L899 garLoopResultBuilder]: For program point L3861-1(line 3861) no Hoare annotation was computed. [2023-11-29 05:45:21,477 INFO L895 garLoopResultBuilder]: At program point L3861(line 3861) the Hoare annotation is: (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| 0)) (= 0 ~res_kbtab_probe_3~0) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0)) [2023-11-29 05:45:21,477 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 05:45:21,477 INFO L899 garLoopResultBuilder]: For program point L3994(lines 3994 4030) no Hoare annotation was computed. [2023-11-29 05:45:21,477 INFO L899 garLoopResultBuilder]: For program point usb_alloc_urb_returnLabel#1(lines 4124 4148) no Hoare annotation was computed. [2023-11-29 05:45:21,477 INFO L899 garLoopResultBuilder]: For program point L4143(lines 4127 4147) no Hoare annotation was computed. [2023-11-29 05:45:21,478 INFO L899 garLoopResultBuilder]: For program point L3813(lines 3813 3816) no Hoare annotation was computed. [2023-11-29 05:45:21,478 INFO L899 garLoopResultBuilder]: For program point L4193-1(lines 4181 4198) no Hoare annotation was computed. [2023-11-29 05:45:21,478 INFO L895 garLoopResultBuilder]: At program point L4193(line 4193) the Hoare annotation is: false [2023-11-29 05:45:21,478 INFO L899 garLoopResultBuilder]: For program point L3863(lines 3793 3873) no Hoare annotation was computed. [2023-11-29 05:45:21,478 INFO L899 garLoopResultBuilder]: For program point L4078(lines 4078 4081) no Hoare annotation was computed. [2023-11-29 05:45:21,478 INFO L899 garLoopResultBuilder]: For program point L3847(line 3847) no Hoare annotation was computed. [2023-11-29 05:45:21,478 INFO L899 garLoopResultBuilder]: For program point L3847-2(line 3847) no Hoare annotation was computed. [2023-11-29 05:45:21,478 INFO L899 garLoopResultBuilder]: For program point L3847-4(line 3847) no Hoare annotation was computed. [2023-11-29 05:45:21,478 INFO L895 garLoopResultBuilder]: At program point L3798(line 3798) the Hoare annotation is: (and (= ~ldv_coherent_state~0 0) (= 0 ~res_kbtab_probe_3~0) (= ~ldv_urb_state~0 0) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,478 INFO L899 garLoopResultBuilder]: For program point L3798-1(line 3798) no Hoare annotation was computed. [2023-11-29 05:45:21,479 INFO L899 garLoopResultBuilder]: For program point L3997(lines 3997 4030) no Hoare annotation was computed. [2023-11-29 05:45:21,479 INFO L899 garLoopResultBuilder]: For program point L3865-1(line 3865) no Hoare annotation was computed. [2023-11-29 05:45:21,479 INFO L895 garLoopResultBuilder]: At program point L3865(line 3865) the Hoare annotation is: (let ((.cse0 (= ~ldv_urb_state~0 0)) (.cse1 (= ~ldv_coherent_state~0 1)) (.cse2 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0))) (or (and .cse0 .cse1 (or (not (= |ULTIMATE.start_kbtab_probe_#t~mem94#1.offset| 0)) (not (= 0 |ULTIMATE.start_kbtab_probe_#t~mem94#1.base|))) (or (not (= (select (select |#memory_$Pointer$#3.base| |ULTIMATE.start_kbtab_probe_~kbtab~3#1.base|) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$#3.offset| |ULTIMATE.start_kbtab_probe_~kbtab~3#1.base|) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset|) 0))) .cse2 (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| 0)) (= 0 ~res_kbtab_probe_3~0) .cse0 .cse1 .cse2))) [2023-11-29 05:45:21,479 INFO L895 garLoopResultBuilder]: At program point L3882(line 3882) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (<= 1 |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1|) (= ~ldv_coherent_state~0 1) (= ~ldv_urb_state~0 1)) [2023-11-29 05:45:21,479 INFO L899 garLoopResultBuilder]: For program point $Ultimate##110(lines 4017 4023) no Hoare annotation was computed. [2023-11-29 05:45:21,479 INFO L899 garLoopResultBuilder]: For program point L3882-1(line 3882) no Hoare annotation was computed. [2023-11-29 05:45:21,479 INFO L895 garLoopResultBuilder]: At program point L4130(line 4130) the Hoare annotation is: (and (= 0 ~res_kbtab_probe_3~0) (= ~ldv_urb_state~0 0) (= ~ldv_coherent_state~0 1) (or (not (= (select (select |#memory_$Pointer$#3.base| |ULTIMATE.start_kbtab_probe_~kbtab~3#1.base|) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$#3.offset| |ULTIMATE.start_kbtab_probe_~kbtab~3#1.base|) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset|) 0))) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| 0) (<= (+ |ULTIMATE.start_kbtab_probe_~error~0#1| 12) 0)) [2023-11-29 05:45:21,483 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:45:21,484 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:45:21,493 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~addr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-29 05:45:21,494 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~addr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-29 05:45:21,495 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~addr!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-29 05:45:21,495 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~addr!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-29 05:45:21,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_s_kbtab_driver_usb_driver~0 [2023-11-29 05:45:21,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~error~0 [2023-11-29 05:45:21,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#3.base[~kbtab~3!base][~kbtab~3!offset] could not be translated [2023-11-29 05:45:21,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#3.offset[~kbtab~3!base][~kbtab~3!offset] could not be translated [2023-11-29 05:45:21,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_s_kbtab_driver_usb_driver~0 [2023-11-29 05:45:21,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~error~0 [2023-11-29 05:45:21,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_s_kbtab_driver_usb_driver~0 [2023-11-29 05:45:21,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~error~0 [2023-11-29 05:45:21,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:45:21 BoogieIcfgContainer [2023-11-29 05:45:21,500 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:45:21,500 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:45:21,500 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:45:21,500 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:45:21,501 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:43:51" (3/4) ... [2023-11-29 05:45:21,503 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kbtab_init [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_get_drvdata [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_set_intfdata [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undefined_pointer [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_urb [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure input_set_abs_params [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kbtab_exit [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2023-11-29 05:45:21,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_assume_stop [2023-11-29 05:45:21,507 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_coherent [2023-11-29 05:45:21,507 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2023-11-29 05:45:21,507 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_set_drvdata [2023-11-29 05:45:21,525 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 97 nodes and edges [2023-11-29 05:45:21,527 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2023-11-29 05:45:21,529 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-29 05:45:21,530 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 05:45:21,532 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:45:21,533 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:45:21,561 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!((ldv_urb_state == 0)) || (ldv_coherent_state == 1)) || !((\old(ldv_coherent_state) == 1))) [2023-11-29 05:45:21,564 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((ldv_urb_state == 1) || !((1 == \old(ldv_urb_state)))) || !((ldv_coherent_state == 1))) || !((0 == res_kbtab_probe_3))) [2023-11-29 05:45:21,697 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!((ldv_urb_state == 0)) || (ldv_coherent_state == 1)) || !((\old(ldv_coherent_state) == 1))) [2023-11-29 05:45:21,698 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((ldv_urb_state == 1) || !((1 == \old(ldv_urb_state)))) || !((ldv_coherent_state == 1))) || !((0 == res_kbtab_probe_3))) [2023-11-29 05:45:21,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:45:21,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:45:21,745 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:45:21,746 INFO L158 Benchmark]: Toolchain (without parser) took 93132.27ms. Allocated memory was 151.0MB in the beginning and 1.1GB in the end (delta: 926.9MB). Free memory was 107.3MB in the beginning and 749.2MB in the end (delta: -641.9MB). Peak memory consumption was 286.1MB. Max. memory is 16.1GB. [2023-11-29 05:45:21,746 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:45:21,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1004.01ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 82.6MB in the end (delta: 24.7MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2023-11-29 05:45:21,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.45ms. Allocated memory is still 151.0MB. Free memory was 82.6MB in the beginning and 75.4MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 05:45:21,747 INFO L158 Benchmark]: Boogie Preprocessor took 151.75ms. Allocated memory is still 151.0MB. Free memory was 75.4MB in the beginning and 59.9MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 05:45:21,747 INFO L158 Benchmark]: RCFGBuilder took 1382.69ms. Allocated memory was 151.0MB in the beginning and 188.7MB in the end (delta: 37.7MB). Free memory was 59.9MB in the beginning and 101.3MB in the end (delta: -41.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-29 05:45:21,748 INFO L158 Benchmark]: TraceAbstraction took 90259.90ms. Allocated memory was 188.7MB in the beginning and 1.1GB in the end (delta: 889.2MB). Free memory was 100.3MB in the beginning and 774.3MB in the end (delta: -674.1MB). Peak memory consumption was 613.6MB. Max. memory is 16.1GB. [2023-11-29 05:45:21,748 INFO L158 Benchmark]: Witness Printer took 245.19ms. Allocated memory is still 1.1GB. Free memory was 774.3MB in the beginning and 749.2MB in the end (delta: 25.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 05:45:21,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1004.01ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 82.6MB in the end (delta: 24.7MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.45ms. Allocated memory is still 151.0MB. Free memory was 82.6MB in the beginning and 75.4MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 151.75ms. Allocated memory is still 151.0MB. Free memory was 75.4MB in the beginning and 59.9MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 1382.69ms. Allocated memory was 151.0MB in the beginning and 188.7MB in the end (delta: 37.7MB). Free memory was 59.9MB in the beginning and 101.3MB in the end (delta: -41.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 90259.90ms. Allocated memory was 188.7MB in the beginning and 1.1GB in the end (delta: 889.2MB). Free memory was 100.3MB in the beginning and 774.3MB in the end (delta: -674.1MB). Peak memory consumption was 613.6MB. Max. memory is 16.1GB. * Witness Printer took 245.19ms. Allocated memory is still 1.1GB. Free memory was 774.3MB in the beginning and 749.2MB in the end (delta: 25.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~addr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~addr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~addr!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~addr!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_s_kbtab_driver_usb_driver~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~error~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#3.base[~kbtab~3!base][~kbtab~3!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#3.offset[~kbtab~3!base][~kbtab~3!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_s_kbtab_driver_usb_driver~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~error~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_s_kbtab_driver_usb_driver~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~error~0 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4049]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 162 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 90.2s, OverallIterations: 23, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 25.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2887 SdHoareTripleChecker+Valid, 11.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2771 mSDsluCounter, 15432 SdHoareTripleChecker+Invalid, 10.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 255 IncrementalHoareTripleChecker+Unchecked, 11190 mSDsCounter, 589 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4883 IncrementalHoareTripleChecker+Invalid, 5727 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 589 mSolverCounterUnsat, 4242 mSDtfsCounter, 4883 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2820 GetRequests, 2582 SyntacticMatches, 1 SemanticMatches, 237 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1068occurred in iteration=19, InterpolantAutomatonStates: 143, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 968 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 50 LocationsWithAnnotation, 3102 PreInvPairs, 3196 NumberOfFragments, 737 HoareAnnotationTreeSize, 3102 FomulaSimplifications, 36585 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 50 FomulaSimplificationsInter, 3136 FormulaSimplificationTreeSizeReductionInter, 25.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 15.7s InterpolantComputationTime, 4107 NumberOfCodeBlocks, 4064 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 4295 ConstructedInterpolants, 7 QuantifiedInterpolants, 7795 SizeOfPredicates, 79 NumberOfNonLiveVariables, 25099 ConjunctsInSsa, 278 ConjunctsInUnsatCore, 42 InterpolantComputations, 22 PerfectInterpolantSequences, 1302/1414 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4055]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4097]: Loop Invariant Derived loop invariant: ((!((ldv_urb_state == 0)) || (ldv_coherent_state == 1)) || !((\old(ldv_coherent_state) == 1))) - InvariantResult [Line: 4072]: Loop Invariant Derived loop invariant: (((ldv_coherent_state == 0) && (0 == res_kbtab_probe_3)) && (ldv_urb_state == 0)) - InvariantResult [Line: 4129]: Loop Invariant Derived loop invariant: (((0 == res_kbtab_probe_3) && (ldv_urb_state == 0)) && (ldv_coherent_state == 1)) - InvariantResult [Line: 4154]: Loop Invariant Derived loop invariant: ((((ldv_urb_state == 1) || !((1 == \old(ldv_urb_state)))) || !((ldv_coherent_state == 1))) || !((0 == res_kbtab_probe_3))) - InvariantResult [Line: 3980]: Loop Invariant Derived loop invariant: (((((0 == res_kbtab_probe_3) && (1 <= ldv_s_kbtab_driver_usb_driver)) && (ldv_coherent_state == 1)) && (ldv_urb_state == 1)) || ((((ldv_coherent_state == 0) && (0 == res_kbtab_probe_3)) && (ldv_urb_state == 0)) && (ldv_s_kbtab_driver_usb_driver == 0))) - InvariantResult [Line: 3909]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3928]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3454]: Loop Invariant Derived loop invariant: (((0 == res_kbtab_probe_3) && (ldv_coherent_state == 1)) && (ldv_urb_state == 1)) - InvariantResult [Line: 3968]: Loop Invariant Derived loop invariant: ((ldv_coherent_state == 0) && (ldv_urb_state == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-29 05:45:21,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87277799-0065-4ada-901f-ce515d4868cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE