./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--hid-roccat-pyra.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--hid-roccat-pyra.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d48abbc06c71aeec5c2fd7c4bfe3a64e4c3a331115f87234999cdb923340216 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:49:51,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:49:51,185 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:49:51,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:49:51,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:49:51,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:49:51,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:49:51,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:49:51,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:49:51,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:49:51,253 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:49:51,254 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:49:51,255 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:49:51,257 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:49:51,257 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:49:51,258 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:49:51,258 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:49:51,259 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:49:51,259 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:49:51,260 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:49:51,261 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:49:51,261 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:49:51,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:49:51,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:49:51,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:49:51,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:49:51,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:49:51,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:49:51,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:49:51,267 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:49:51,268 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:49:51,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:49:51,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:49:51,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:51,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:49:51,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:49:51,271 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:49:51,271 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:49:51,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:49:51,272 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:49:51,272 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:49:51,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:49:51,273 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d48abbc06c71aeec5c2fd7c4bfe3a64e4c3a331115f87234999cdb923340216 [2023-11-19 04:49:51,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:49:51,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:49:51,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:49:51,656 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:49:51,657 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:49:51,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--hid-roccat-pyra.ko-entry_point.cil.out.i [2023-11-19 04:49:55,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:49:55,856 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:49:55,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--hid-roccat-pyra.ko-entry_point.cil.out.i [2023-11-19 04:49:55,899 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/data/595fc9fd5/a89b6fb2fe334c4e93ff4167787abb9e/FLAG5be573900 [2023-11-19 04:49:55,916 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/data/595fc9fd5/a89b6fb2fe334c4e93ff4167787abb9e [2023-11-19 04:49:55,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:49:55,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:49:55,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:55,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:49:55,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:49:55,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:55" (1/1) ... [2023-11-19 04:49:55,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a5bcb17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:55, skipping insertion in model container [2023-11-19 04:49:55,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:55" (1/1) ... [2023-11-19 04:49:56,154 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:49:57,902 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_30815d95-f7a2-4865-989d-07cc63fa6727/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--hid-roccat-pyra.ko-entry_point.cil.out.i[184130,184143] [2023-11-19 04:49:58,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:58,182 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:49:58,601 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--hid-roccat-pyra.ko-entry_point.cil.out.i[184130,184143] [2023-11-19 04:49:58,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:58,818 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:49:58,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58 WrapperNode [2023-11-19 04:49:58,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:58,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:58,822 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:49:58,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:49:58,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:58,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:59,118 INFO L138 Inliner]: procedures = 205, calls = 1205, calls flagged for inlining = 96, calls inlined = 92, statements flattened = 3434 [2023-11-19 04:49:59,119 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:59,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:49:59,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:49:59,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:49:59,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:59,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:59,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:59,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:59,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:59,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:59,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:59,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:59,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:49:59,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:49:59,464 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:49:59,464 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:49:59,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (1/1) ... [2023-11-19 04:49:59,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:59,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:49:59,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:49:59,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30815d95-f7a2-4865-989d-07cc63fa6727/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:49:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure roccat_common2_receive [2023-11-19 04:49:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure roccat_common2_receive [2023-11-19 04:49:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:49:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:49:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure hid_set_drvdata [2023-11-19 04:49:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_set_drvdata [2023-11-19 04:49:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:49:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:49:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_stop [2023-11-19 04:49:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_stop [2023-11-19 04:49:59,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:49:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:49:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure roccat_report_event [2023-11-19 04:49:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure roccat_report_event [2023-11-19 04:49:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure hid_get_drvdata [2023-11-19 04:49:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_get_drvdata [2023-11-19 04:49:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 04:49:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 04:49:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:49:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:49:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:49:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:49:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 04:49:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 04:49:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure pyra_sysfs_read_profilex_settings [2023-11-19 04:49:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pyra_sysfs_read_profilex_settings [2023-11-19 04:49:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:49:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure profile_activated [2023-11-19 04:49:59,564 INFO L138 BoogieDeclarations]: Found implementation of procedure profile_activated [2023-11-19 04:49:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:49:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:49:59,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:49:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure pyra_send_control [2023-11-19 04:49:59,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pyra_send_control [2023-11-19 04:49:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:49:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:49:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure pyra_sysfs_read_profilex_buttons [2023-11-19 04:49:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pyra_sysfs_read_profilex_buttons [2023-11-19 04:49:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:49:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:49:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 04:49:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 04:49:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pyra_lock_of_pyra_device [2023-11-19 04:49:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pyra_lock_of_pyra_device [2023-11-19 04:49:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:49:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure pyra_sysfs_show_actual_profile [2023-11-19 04:49:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pyra_sysfs_show_actual_profile [2023-11-19 04:49:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure pyra_sysfs_read [2023-11-19 04:49:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pyra_sysfs_read [2023-11-19 04:49:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:49:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:49:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2023-11-19 04:49:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2023-11-19 04:49:59,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:49:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:49:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:49:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:49:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:49:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:49:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:49:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:49:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure pyra_raw_event [2023-11-19 04:49:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pyra_raw_event [2023-11-19 04:49:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:49:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:49:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pyra_lock_of_pyra_device [2023-11-19 04:49:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pyra_lock_of_pyra_device [2023-11-19 04:49:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure pyra_remove [2023-11-19 04:49:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pyra_remove [2023-11-19 04:49:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure roccat_common2_send_with_status [2023-11-19 04:49:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure roccat_common2_send_with_status [2023-11-19 04:49:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:49:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-19 04:49:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-19 04:49:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:49:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:49:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure pyra_sysfs_write [2023-11-19 04:49:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pyra_sysfs_write [2023-11-19 04:49:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:49:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:50:00,325 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:50:00,336 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:50:00,770 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:50:04,182 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:50:04,932 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:50:04,933 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:50:04,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:04 BoogieIcfgContainer [2023-11-19 04:50:04,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:50:04,956 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:50:04,957 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:50:04,960 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:50:04,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:49:55" (1/3) ... [2023-11-19 04:50:04,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aaf7264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:04, skipping insertion in model container [2023-11-19 04:50:04,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:58" (2/3) ... [2023-11-19 04:50:04,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aaf7264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:04, skipping insertion in model container [2023-11-19 04:50:04,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:04" (3/3) ... [2023-11-19 04:50:04,966 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hid--hid-roccat-pyra.ko-entry_point.cil.out.i [2023-11-19 04:50:04,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:50:04,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:50:05,099 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:50:05,109 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15dd09f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:50:05,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:50:05,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 786 states, 491 states have (on average 1.4032586558044806) internal successors, (689), 526 states have internal predecessors, (689), 260 states have call successors, (260), 34 states have call predecessors, (260), 33 states have return successors, (238), 235 states have call predecessors, (238), 238 states have call successors, (238) [2023-11-19 04:50:05,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2023-11-19 04:50:05,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:05,208 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 56, 56, 56, 56, 56, 56, 39, 39, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:05,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:05,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:05,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1078662532, now seen corresponding path program 1 times [2023-11-19 04:50:05,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:05,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731507444] [2023-11-19 04:50:05,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:05,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:50:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:50:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 17843 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17843 trivial. 0 not checked. [2023-11-19 04:50:09,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:50:09,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731507444] [2023-11-19 04:50:09,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731507444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:50:09,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:50:09,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:50:09,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136108315] [2023-11-19 04:50:09,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:50:09,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:50:09,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:50:10,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:50:10,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:10,047 INFO L87 Difference]: Start difference. First operand has 786 states, 491 states have (on average 1.4032586558044806) internal successors, (689), 526 states have internal predecessors, (689), 260 states have call successors, (260), 34 states have call predecessors, (260), 33 states have return successors, (238), 235 states have call predecessors, (238), 238 states have call successors, (238) Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2023-11-19 04:50:12,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:50:14,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:50:15,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:50:17,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:50:17,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:50:17,662 INFO L93 Difference]: Finished difference Result 1843 states and 2866 transitions. [2023-11-19 04:50:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:50:17,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 953 [2023-11-19 04:50:17,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:50:17,704 INFO L225 Difference]: With dead ends: 1843 [2023-11-19 04:50:17,705 INFO L226 Difference]: Without dead ends: 1199 [2023-11-19 04:50:17,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:17,736 INFO L413 NwaCegarLoop]: 1086 mSDtfsCounter, 768 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:50:17,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 2139 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 198 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2023-11-19 04:50:17,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2023-11-19 04:50:17,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1195. [2023-11-19 04:50:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 814 states have (on average 1.4054054054054055) internal successors, (1144), 826 states have internal predecessors, (1144), 325 states have call successors, (325), 56 states have call predecessors, (325), 55 states have return successors, (319), 315 states have call predecessors, (319), 319 states have call successors, (319) [2023-11-19 04:50:17,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1788 transitions. [2023-11-19 04:50:17,987 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1788 transitions. Word has length 953 [2023-11-19 04:50:17,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:50:17,997 INFO L495 AbstractCegarLoop]: Abstraction has 1195 states and 1788 transitions. [2023-11-19 04:50:17,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2023-11-19 04:50:18,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1788 transitions. [2023-11-19 04:50:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 964 [2023-11-19 04:50:18,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:18,046 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 56, 56, 56, 56, 56, 56, 39, 39, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:18,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:50:18,048 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:18,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:18,049 INFO L85 PathProgramCache]: Analyzing trace with hash 839444471, now seen corresponding path program 1 times [2023-11-19 04:50:18,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:18,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72253846] [2023-11-19 04:50:18,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:18,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:50:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:50:20,118 INFO L134 CoverageAnalysis]: Checked inductivity of 17845 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17845 trivial. 0 not checked. [2023-11-19 04:50:20,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:50:20,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72253846] [2023-11-19 04:50:20,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72253846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:50:20,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:50:20,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:50:20,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250617139] [2023-11-19 04:50:20,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:50:20,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:50:20,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:50:20,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:50:20,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:20,130 INFO L87 Difference]: Start difference. First operand 1195 states and 1788 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-19 04:50:22,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:50:22,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:50:22,742 INFO L93 Difference]: Finished difference Result 3108 states and 4649 transitions. [2023-11-19 04:50:22,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:50:22,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 963 [2023-11-19 04:50:22,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:50:22,771 INFO L225 Difference]: With dead ends: 3108 [2023-11-19 04:50:22,771 INFO L226 Difference]: Without dead ends: 2129 [2023-11-19 04:50:22,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:22,778 INFO L413 NwaCegarLoop]: 1009 mSDtfsCounter, 1049 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:50:22,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 1691 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 185 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 04:50:22,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2023-11-19 04:50:22,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 2111. [2023-11-19 04:50:22,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 1484 states have (on average 1.4359838274932615) internal successors, (2131), 1504 states have internal predecessors, (2131), 518 states have call successors, (518), 109 states have call predecessors, (518), 108 states have return successors, (512), 503 states have call predecessors, (512), 512 states have call successors, (512) [2023-11-19 04:50:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 3161 transitions. [2023-11-19 04:50:22,957 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 3161 transitions. Word has length 963 [2023-11-19 04:50:22,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:50:22,959 INFO L495 AbstractCegarLoop]: Abstraction has 2111 states and 3161 transitions. [2023-11-19 04:50:22,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-19 04:50:22,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 3161 transitions. [2023-11-19 04:50:23,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2023-11-19 04:50:23,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:23,007 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 56, 56, 56, 56, 56, 56, 39, 39, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:23,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:50:23,008 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:23,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:23,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1403209291, now seen corresponding path program 1 times [2023-11-19 04:50:23,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:23,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321282436] [2023-11-19 04:50:23,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:23,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:50:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:50:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 17845 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17845 trivial. 0 not checked. [2023-11-19 04:50:24,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:50:24,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321282436] [2023-11-19 04:50:24,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321282436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:50:24,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:50:24,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:50:24,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183318791] [2023-11-19 04:50:24,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:50:24,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:50:24,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:50:24,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:50:24,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:24,854 INFO L87 Difference]: Start difference. First operand 2111 states and 3161 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (115), 2 states have call predecessors, (115), 1 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-19 04:50:26,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:50:27,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:50:27,145 INFO L93 Difference]: Finished difference Result 5846 states and 8748 transitions. [2023-11-19 04:50:27,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:50:27,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (115), 2 states have call predecessors, (115), 1 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 965 [2023-11-19 04:50:27,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:50:27,182 INFO L225 Difference]: With dead ends: 5846 [2023-11-19 04:50:27,183 INFO L226 Difference]: Without dead ends: 3951 [2023-11-19 04:50:27,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:27,193 INFO L413 NwaCegarLoop]: 1039 mSDtfsCounter, 1060 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:50:27,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 1719 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 04:50:27,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2023-11-19 04:50:27,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3933. [2023-11-19 04:50:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3933 states, 2806 states have (on average 1.4493941553813257) internal successors, (4067), 2842 states have internal predecessors, (4067), 912 states have call successors, (912), 215 states have call predecessors, (912), 214 states have return successors, (906), 887 states have call predecessors, (906), 906 states have call successors, (906) [2023-11-19 04:50:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 5885 transitions. [2023-11-19 04:50:27,519 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 5885 transitions. Word has length 965 [2023-11-19 04:50:27,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:50:27,522 INFO L495 AbstractCegarLoop]: Abstraction has 3933 states and 5885 transitions. [2023-11-19 04:50:27,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (115), 2 states have call predecessors, (115), 1 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-19 04:50:27,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 5885 transitions. [2023-11-19 04:50:27,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2023-11-19 04:50:27,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:27,540 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 56, 56, 56, 56, 56, 56, 39, 39, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:27,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:50:27,541 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:27,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:27,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1815183723, now seen corresponding path program 1 times [2023-11-19 04:50:27,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:27,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98693139] [2023-11-19 04:50:27,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:27,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:50:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:50:29,349 INFO L134 CoverageAnalysis]: Checked inductivity of 17845 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17845 trivial. 0 not checked. [2023-11-19 04:50:29,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:50:29,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98693139] [2023-11-19 04:50:29,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98693139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:50:29,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:50:29,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:50:29,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398293073] [2023-11-19 04:50:29,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:50:29,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:50:29,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:50:29,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:50:29,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:29,355 INFO L87 Difference]: Start difference. First operand 3933 states and 5885 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (115), 2 states have call predecessors, (115), 1 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-19 04:50:31,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:50:32,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:50:32,389 INFO L93 Difference]: Finished difference Result 11235 states and 16795 transitions. [2023-11-19 04:50:32,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:50:32,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (115), 2 states have call predecessors, (115), 1 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 968 [2023-11-19 04:50:32,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:50:32,458 INFO L225 Difference]: With dead ends: 11235 [2023-11-19 04:50:32,459 INFO L226 Difference]: Without dead ends: 7518 [2023-11-19 04:50:32,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:32,476 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 1045 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:50:32,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1736 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2023-11-19 04:50:32,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7518 states. [2023-11-19 04:50:32,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7518 to 7497. [2023-11-19 04:50:32,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7497 states, 5394 states have (on average 1.4562476826103077) internal successors, (7855), 5462 states have internal predecessors, (7855), 1676 states have call successors, (1676), 427 states have call predecessors, (1676), 426 states have return successors, (1670), 1631 states have call predecessors, (1670), 1670 states have call successors, (1670) [2023-11-19 04:50:33,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7497 states to 7497 states and 11201 transitions. [2023-11-19 04:50:33,011 INFO L78 Accepts]: Start accepts. Automaton has 7497 states and 11201 transitions. Word has length 968 [2023-11-19 04:50:33,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:50:33,014 INFO L495 AbstractCegarLoop]: Abstraction has 7497 states and 11201 transitions. [2023-11-19 04:50:33,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (115), 2 states have call predecessors, (115), 1 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-19 04:50:33,015 INFO L276 IsEmpty]: Start isEmpty. Operand 7497 states and 11201 transitions. [2023-11-19 04:50:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2023-11-19 04:50:33,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:33,032 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 56, 56, 56, 56, 56, 56, 39, 39, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:33,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:50:33,032 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:33,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:33,033 INFO L85 PathProgramCache]: Analyzing trace with hash -2122663358, now seen corresponding path program 1 times [2023-11-19 04:50:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:33,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525170397] [2023-11-19 04:50:33,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:33,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:50:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:50:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 17887 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17887 trivial. 0 not checked. [2023-11-19 04:50:35,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:50:35,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525170397] [2023-11-19 04:50:35,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525170397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:50:35,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:50:35,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:50:35,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147164830] [2023-11-19 04:50:35,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:50:35,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:50:35,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:50:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:50:35,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:35,353 INFO L87 Difference]: Start difference. First operand 7497 states and 11201 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) [2023-11-19 04:50:37,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:50:38,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:50:38,050 INFO L93 Difference]: Finished difference Result 7499 states and 11202 transitions. [2023-11-19 04:50:38,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:50:38,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) Word has length 968 [2023-11-19 04:50:38,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:50:38,126 INFO L225 Difference]: With dead ends: 7499 [2023-11-19 04:50:38,126 INFO L226 Difference]: Without dead ends: 7496 [2023-11-19 04:50:38,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:38,134 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 861 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:50:38,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1002 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2023-11-19 04:50:38,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2023-11-19 04:50:38,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7496. [2023-11-19 04:50:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 5394 states have (on average 1.4560622914349277) internal successors, (7854), 5461 states have internal predecessors, (7854), 1675 states have call successors, (1675), 427 states have call predecessors, (1675), 426 states have return successors, (1670), 1631 states have call predecessors, (1670), 1670 states have call successors, (1670) [2023-11-19 04:50:38,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 11199 transitions. [2023-11-19 04:50:38,697 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 11199 transitions. Word has length 968 [2023-11-19 04:50:38,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:50:38,699 INFO L495 AbstractCegarLoop]: Abstraction has 7496 states and 11199 transitions. [2023-11-19 04:50:38,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (111), 2 states have call predecessors, (111), 2 states have call successors, (111) [2023-11-19 04:50:38,700 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 11199 transitions. [2023-11-19 04:50:38,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2023-11-19 04:50:38,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:38,716 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 56, 56, 56, 56, 56, 56, 39, 39, 11, 11, 11, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:38,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:50:38,716 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:38,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1766226004, now seen corresponding path program 1 times [2023-11-19 04:50:38,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:38,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397139683] [2023-11-19 04:50:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:38,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms