./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 79c59911d632f64892b46f6f0160c6d774def495341e39ab1ffb5f3f230d8f6a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 16:12:09,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:12:09,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:12:09,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:12:09,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:12:09,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:12:09,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:12:09,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:12:09,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:12:09,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:12:09,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:12:09,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:12:09,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:12:09,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:12:09,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:12:09,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:12:09,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:12:09,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:12:09,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:12:09,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:12:09,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:12:09,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:12:09,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:12:09,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:12:09,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:12:09,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:12:09,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:12:09,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:12:09,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:12:09,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:12:09,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:12:09,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:12:09,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:12:09,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:12:09,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:12:09,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:12:09,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:12:09,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:12:09,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:12:09,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:12:09,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:12:09,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 16:12:09,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:12:09,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:12:09,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:12:09,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:12:09,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:12:09,339 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:12:09,339 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:12:09,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:12:09,340 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:12:09,340 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:12:09,341 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:12:09,342 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:12:09,342 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:12:09,342 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:12:09,342 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:12:09,342 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:12:09,343 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:12:09,343 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:12:09,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:12:09,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:12:09,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:12:09,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:12:09,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:12:09,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:12:09,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:12:09,346 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:12:09,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:12:09,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:12:09,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:12:09,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:12:09,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:12:09,353 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:12:09,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:12:09,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:12:09,354 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:12:09,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:12:09,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:12:09,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:12:09,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79c59911d632f64892b46f6f0160c6d774def495341e39ab1ffb5f3f230d8f6a [2022-11-16 16:12:09,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:12:09,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:12:09,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:12:09,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:12:09,684 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:12:09,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-16 16:12:09,764 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/data/69e578e41/984ac20c3a3646b8acad320c95fef519/FLAG7f4bda9f7 [2022-11-16 16:12:10,727 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:12:10,727 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-16 16:12:10,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/data/69e578e41/984ac20c3a3646b8acad320c95fef519/FLAG7f4bda9f7 [2022-11-16 16:12:11,102 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/data/69e578e41/984ac20c3a3646b8acad320c95fef519 [2022-11-16 16:12:11,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:12:11,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:12:11,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:12:11,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:12:11,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:12:11,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:12:11" (1/1) ... [2022-11-16 16:12:11,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181fc0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:11, skipping insertion in model container [2022-11-16 16:12:11,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:12:11" (1/1) ... [2022-11-16 16:12:11,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:12:11,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:12:11,953 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4401] [2022-11-16 16:12:11,954 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4402-4403] [2022-11-16 16:12:12,275 WARN L229 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_612e0059-0b3e-4198-94b6-ba175253625a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[128353,128366] [2022-11-16 16:12:16,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:12:16,224 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:12:16,318 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4401] [2022-11-16 16:12:16,319 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4402-4403] [2022-11-16 16:12:16,323 WARN L229 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_612e0059-0b3e-4198-94b6-ba175253625a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[128353,128366] [2022-11-16 16:12:16,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:12:17,124 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:12:17,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17 WrapperNode [2022-11-16 16:12:17,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:12:17,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:12:17,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:12:17,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:12:17,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:17,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:17,896 INFO L138 Inliner]: procedures = 543, calls = 9690, calls flagged for inlining = 292, calls inlined = 262, statements flattened = 17150 [2022-11-16 16:12:17,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:12:17,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:12:17,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:12:17,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:12:17,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:17,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:18,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:18,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:18,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:18,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:18,780 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:18,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:18,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:12:18,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:12:18,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:12:18,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:12:18,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (1/1) ... [2022-11-16 16:12:18,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:12:18,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:12:18,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:12:18,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:12:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_par [2022-11-16 16:12:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_par [2022-11-16 16:12:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-16 16:12:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_disable [2022-11-16 16:12:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_disable [2022-11-16 16:12:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lvds_identify_vt1636 [2022-11-16 16:12:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lvds_identify_vt1636 [2022-11-16 16:12:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-16 16:12:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-16 16:12:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 16:12:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 16:12:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_remove [2022-11-16 16:12:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_remove [2022-11-16 16:12:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure get_sync [2022-11-16 16:12:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sync [2022-11-16 16:12:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-16 16:12:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-16 16:12:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure via_read_reg [2022-11-16 16:12:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure via_read_reg [2022-11-16 16:12:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_output_frequency [2022-11-16 16:12:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_output_frequency [2022-11-16 16:12:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure write_dac_reg [2022-11-16 16:12:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dac_reg [2022-11-16 16:12:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure vx855_encode_pll [2022-11-16 16:12:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure vx855_encode_pll [2022-11-16 16:12:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga2_odev_proc_write [2022-11-16 16:12:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga2_odev_proc_write [2022-11-16 16:12:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_resume [2022-11-16 16:12:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_resume [2022-11-16 16:12:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~~bool~0~TO~VOID [2022-11-16 16:12:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~~bool~0~TO~VOID [2022-11-16 16:12:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_teardown_mmio [2022-11-16 16:12:19,019 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_teardown_mmio [2022-11-16 16:12:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_remove [2022-11-16 16:12:19,019 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_remove [2022-11-16 16:12:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_enable_lvds_vt1636 [2022-11-16 16:12:19,019 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_enable_lvds_vt1636 [2022-11-16 16:12:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 16:12:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lock_crt [2022-11-16 16:12:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lock_crt [2022-11-16 16:12:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_misc_reg_mask [2022-11-16 16:12:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_misc_reg_mask [2022-11-16 16:12:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_alloc [2022-11-16 16:12:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_alloc [2022-11-16 16:12:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-16 16:12:19,021 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-16 16:12:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_check_var [2022-11-16 16:12:19,021 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_check_var [2022-11-16 16:12:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp1_proc_write [2022-11-16 16:12:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp1_proc_write [2022-11-16 16:12:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 16:12:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 16:12:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_readbyte [2022-11-16 16:12:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_readbyte [2022-11-16 16:12:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_timing [2022-11-16 16:12:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_timing [2022-11-16 16:12:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:12:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-16 16:12:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-16 16:12:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure set_clock_source_common [2022-11-16 16:12:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure set_clock_source_common [2022-11-16 16:12:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure set_dpa_vt1636 [2022-11-16 16:12:19,024 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dpa_vt1636 [2022-11-16 16:12:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_FIFO_reg [2022-11-16 16:12:19,024 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_FIFO_reg [2022-11-16 16:12:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_primary_pll_encoded [2022-11-16 16:12:19,024 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_primary_pll_encoded [2022-11-16 16:12:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure set_color_register [2022-11-16 16:12:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure set_color_register [2022-11-16 16:12:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 16:12:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 16:12:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2022-11-16 16:12:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2022-11-16 16:12:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 16:12:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 16:12:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_get_best_mode [2022-11-16 16:12:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_get_best_mode [2022-11-16 16:12:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 16:12:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_write_mask_lvds [2022-11-16 16:12:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_write_mask_lvds [2022-11-16 16:12:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-16 16:12:19,027 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-16 16:12:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-16 16:12:19,027 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-16 16:12:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 16:12:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_write [2022-11-16 16:12:19,028 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_write [2022-11-16 16:12:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_read [2022-11-16 16:12:19,028 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_read [2022-11-16 16:12:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_disable_lvds_vt1636 [2022-11-16 16:12:19,028 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_disable_lvds_vt1636 [2022-11-16 16:12:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:12:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_read [2022-11-16 16:12:19,029 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_read [2022-11-16 16:12:19,029 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_imageblit [2022-11-16 16:12:19,029 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_imageblit [2022-11-16 16:12:19,029 INFO L130 BoogieDeclarations]: Found specification of procedure get_clk_range_index [2022-11-16 16:12:19,029 INFO L138 BoogieDeclarations]: Found implementation of procedure get_clk_range_index [2022-11-16 16:12:19,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 16:12:19,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 16:12:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_enable [2022-11-16 16:12:19,030 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_enable [2022-11-16 16:12:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 16:12:19,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 16:12:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-16 16:12:19,031 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-16 16:12:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_copyarea [2022-11-16 16:12:19,031 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_copyarea [2022-11-16 16:12:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-16 16:12:19,031 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-16 16:12:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-16 16:12:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-16 16:12:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_var_refresh [2022-11-16 16:12:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure get_var_refresh [2022-11-16 16:12:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-16 16:12:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-16 16:12:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_unlock_crt [2022-11-16 16:12:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_unlock_crt [2022-11-16 16:12:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2022-11-16 16:12:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2022-11-16 16:12:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_fetch_count_reg [2022-11-16 16:12:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_fetch_count_reg [2022-11-16 16:12:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8_from_user [2022-11-16 16:12:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8_from_user [2022-11-16 16:12:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 16:12:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_register [2022-11-16 16:12:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_register [2022-11-16 16:12:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-16 16:12:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-16 16:12:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_reset_engine [2022-11-16 16:12:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_reset_engine [2022-11-16 16:12:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2022-11-16 16:12:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2022-11-16 16:12:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:12:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_disable [2022-11-16 16:12:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_disable [2022-11-16 16:12:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 16:12:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 16:12:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 16:12:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure get_dvi_devices [2022-11-16 16:12:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dvi_devices [2022-11-16 16:12:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 16:12:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 16:12:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-16 16:12:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-16 16:12:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_vt1636_proc_write [2022-11-16 16:12:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_vt1636_proc_write [2022-11-16 16:12:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 16:12:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 16:12:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_writebyte [2022-11-16 16:12:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_writebyte [2022-11-16 16:12:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure via_gpio_set [2022-11-16 16:12:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure via_gpio_set [2022-11-16 16:12:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_timing [2022-11-16 16:12:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_timing [2022-11-16 16:12:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_address [2022-11-16 16:12:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_address [2022-11-16 16:12:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_timing [2022-11-16 16:12:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_timing [2022-11-16 16:12:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_reg [2022-11-16 16:12:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_reg [2022-11-16 16:12:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure register_framebuffer [2022-11-16 16:12:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure register_framebuffer [2022-11-16 16:12:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-16 16:12:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-16 16:12:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_read [2022-11-16 16:12:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_read [2022-11-16 16:12:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_enable [2022-11-16 16:12:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_enable [2022-11-16 16:12:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_probe [2022-11-16 16:12:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_probe [2022-11-16 16:12:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure set_engine_pll_encoded [2022-11-16 16:12:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure set_engine_pll_encoded [2022-11-16 16:12:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure odev_update [2022-11-16 16:12:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure odev_update [2022-11-16 16:12:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:12:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:12:19,047 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_sync_polarity [2022-11-16 16:12:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_sync_polarity [2022-11-16 16:12:19,047 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 16:12:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 16:12:19,047 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_suspend [2022-11-16 16:12:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_suspend [2022-11-16 16:12:19,047 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_read_lvds [2022-11-16 16:12:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_read_lvds [2022-11-16 16:12:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2022-11-16 16:12:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2022-11-16 16:12:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_remove [2022-11-16 16:12:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_remove [2022-11-16 16:12:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-16 16:12:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-16 16:12:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 16:12:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 16:12:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2022-11-16 16:12:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2022-11-16 16:12:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 16:12:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 16:12:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2022-11-16 16:12:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2022-11-16 16:12:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure parse_mode [2022-11-16 16:12:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_mode [2022-11-16 16:12:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure set_lcd_output_path [2022-11-16 16:12:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure set_lcd_output_path [2022-11-16 16:12:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure via_teardown_subdevs [2022-11-16 16:12:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure via_teardown_subdevs [2022-11-16 16:12:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-16 16:12:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-16 16:12:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_state [2022-11-16 16:12:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_state [2022-11-16 16:12:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure get_lcd_devices [2022-11-16 16:12:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure get_lcd_devices [2022-11-16 16:12:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure probe___0 [2022-11-16 16:12:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___0 [2022-11-16 16:12:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure probe___1 [2022-11-16 16:12:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___1 [2022-11-16 16:12:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure probe___3 [2022-11-16 16:12:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___3 [2022-11-16 16:12:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_source [2022-11-16 16:12:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_source [2022-11-16 16:12:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_var_timing_info [2022-11-16 16:12:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_var_timing_info [2022-11-16 16:12:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 16:12:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 16:12:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_8 [2022-11-16 16:12:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_8 [2022-11-16 16:12:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 16:12:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 16:12:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2022-11-16 16:12:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2022-11-16 16:12:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-11-16 16:12:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-11-16 16:12:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg_mask [2022-11-16 16:12:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg_mask [2022-11-16 16:12:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2022-11-16 16:12:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2022-11-16 16:12:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 16:12:19,056 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 16:12:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 16:12:19,057 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 16:12:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_resume [2022-11-16 16:12:19,057 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_resume [2022-11-16 16:12:19,059 INFO L130 BoogieDeclarations]: Found specification of procedure via_resume [2022-11-16 16:12:19,059 INFO L138 BoogieDeclarations]: Found implementation of procedure via_resume [2022-11-16 16:12:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:12:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 16:12:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 16:12:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure cle266_encode_pll [2022-11-16 16:12:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure cle266_encode_pll [2022-11-16 16:12:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-11-16 16:12:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-11-16 16:12:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 16:12:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-16 16:12:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-16 16:12:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_write_regx [2022-11-16 16:12:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_write_regx [2022-11-16 16:12:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2022-11-16 16:12:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2022-11-16 16:12:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2022-11-16 16:12:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2022-11-16 16:12:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_free [2022-11-16 16:12:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_free [2022-11-16 16:12:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 16:12:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-16 16:12:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-16 16:12:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_suspend [2022-11-16 16:12:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_suspend [2022-11-16 16:12:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_sync [2022-11-16 16:12:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_sync [2022-11-16 16:12:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_probe [2022-11-16 16:12:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_probe [2022-11-16 16:12:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-16 16:12:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-16 16:12:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-16 16:12:19,065 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-16 16:12:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_framebuffer [2022-11-16 16:12:19,065 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_framebuffer [2022-11-16 16:12:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure get_best_mode [2022-11-16 16:12:19,065 INFO L138 BoogieDeclarations]: Found implementation of procedure get_best_mode [2022-11-16 16:12:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_probe [2022-11-16 16:12:19,065 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_probe [2022-11-16 16:12:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 16:12:19,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 16:12:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp0_proc_write [2022-11-16 16:12:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp0_proc_write [2022-11-16 16:12:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_config [2022-11-16 16:12:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_config [2022-11-16 16:12:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure parse_port [2022-11-16 16:12:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_port [2022-11-16 16:12:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_fix [2022-11-16 16:12:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_fix [2022-11-16 16:12:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~u8~0~TO~VOID [2022-11-16 16:12:19,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~u8~0~TO~VOID [2022-11-16 16:12:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2022-11-16 16:12:19,067 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2022-11-16 16:12:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg [2022-11-16 16:12:19,067 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg [2022-11-16 16:12:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-16 16:12:19,067 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-16 16:12:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_fillrect [2022-11-16 16:12:19,067 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_fillrect [2022-11-16 16:12:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_setup_fixinfo [2022-11-16 16:12:19,067 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_setup_fixinfo [2022-11-16 16:12:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_vclock [2022-11-16 16:12:19,068 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_vclock [2022-11-16 16:12:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_sense [2022-11-16 16:12:19,068 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_sense [2022-11-16 16:12:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_iga_path [2022-11-16 16:12:19,068 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_iga_path [2022-11-16 16:12:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure check_tmds_chip [2022-11-16 16:12:19,068 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tmds_chip [2022-11-16 16:12:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 16:12:19,068 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 16:12:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_unregister [2022-11-16 16:12:19,069 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_unregister [2022-11-16 16:12:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_get_preferred_mode [2022-11-16 16:12:19,069 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_get_preferred_mode [2022-11-16 16:12:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:12:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-16 16:12:19,069 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-16 16:12:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-11-16 16:12:19,069 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-11-16 16:12:19,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 16:12:19,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 16:12:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfph_proc_write [2022-11-16 16:12:19,070 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfph_proc_write [2022-11-16 16:12:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_disable [2022-11-16 16:12:19,070 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_disable [2022-11-16 16:12:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure k800_encode_pll [2022-11-16 16:12:19,070 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_encode_pll [2022-11-16 16:12:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-16 16:12:19,070 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-16 16:12:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-16 16:12:19,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-16 16:12:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_set_mode [2022-11-16 16:12:19,071 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_set_mode [2022-11-16 16:12:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_enable [2022-11-16 16:12:19,071 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_enable [2022-11-16 16:12:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_set_mode [2022-11-16 16:12:19,071 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_set_mode [2022-11-16 16:12:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-16 16:12:19,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-16 16:12:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_query_EDID [2022-11-16 16:12:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_query_EDID [2022-11-16 16:12:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pan_display [2022-11-16 16:12:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pan_display [2022-11-16 16:12:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-11-16 16:12:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-11-16 16:12:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-11-16 16:12:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-11-16 16:12:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure via_fb_pci_remove [2022-11-16 16:12:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure via_fb_pci_remove [2022-11-16 16:12:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_dpa_gfx [2022-11-16 16:12:19,073 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_dpa_gfx [2022-11-16 16:12:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_secondary_pll_encoded [2022-11-16 16:12:19,073 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_secondary_pll_encoded [2022-11-16 16:12:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfpl_proc_write [2022-11-16 16:12:19,073 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfpl_proc_write [2022-11-16 16:12:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_device_setting [2022-11-16 16:12:19,073 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_device_setting [2022-11-16 16:12:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_bus_free [2022-11-16 16:12:19,073 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_bus_free [2022-11-16 16:12:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_address [2022-11-16 16:12:19,077 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_address [2022-11-16 16:12:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-16 16:12:19,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-16 16:12:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_init_lvds_output_interface [2022-11-16 16:12:19,077 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_init_lvds_output_interface [2022-11-16 16:12:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_bpp [2022-11-16 16:12:19,078 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_bpp [2022-11-16 16:12:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-16 16:12:19,078 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-16 16:12:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_crtc_timing [2022-11-16 16:12:19,078 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_crtc_timing [2022-11-16 16:12:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure set_source_common [2022-11-16 16:12:19,079 INFO L138 BoogieDeclarations]: Found implementation of procedure set_source_common [2022-11-16 16:12:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-16 16:12:19,079 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-16 16:12:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure machine_is_olpc [2022-11-16 16:12:19,079 INFO L138 BoogieDeclarations]: Found implementation of procedure machine_is_olpc [2022-11-16 16:12:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-16 16:12:19,079 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-16 16:12:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:12:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_find_i2c_adapter [2022-11-16 16:12:19,080 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_find_i2c_adapter [2022-11-16 16:12:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga1_odev_proc_write [2022-11-16 16:12:19,080 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga1_odev_proc_write [2022-11-16 16:12:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_write [2022-11-16 16:12:19,080 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_write [2022-11-16 16:12:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_enable [2022-11-16 16:12:19,080 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_enable [2022-11-16 16:12:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_show_hw_cursor [2022-11-16 16:12:19,080 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_show_hw_cursor [2022-11-16 16:12:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2022-11-16 16:12:19,081 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2022-11-16 16:12:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-16 16:12:19,081 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-16 16:12:20,589 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:12:20,594 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:12:25,312 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 16:13:18,619 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:13:30,018 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:13:30,018 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 16:13:30,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:13:30 BoogieIcfgContainer [2022-11-16 16:13:30,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:13:30,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:13:30,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:13:30,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:13:30,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:12:11" (1/3) ... [2022-11-16 16:13:30,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e16dc8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:13:30, skipping insertion in model container [2022-11-16 16:13:30,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:12:17" (2/3) ... [2022-11-16 16:13:30,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e16dc8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:13:30, skipping insertion in model container [2022-11-16 16:13:30,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:13:30" (3/3) ... [2022-11-16 16:13:30,039 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-16 16:13:30,061 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:13:30,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:13:30,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:13:30,202 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20eff75c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:13:30,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:13:30,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 3336 states, 2023 states have (on average 1.4127533366287692) internal successors, (2858), 2201 states have internal predecessors, (2858), 1123 states have call successors, (1123), 189 states have call predecessors, (1123), 188 states have return successors, (1104), 1043 states have call predecessors, (1104), 1104 states have call successors, (1104) [2022-11-16 16:13:30,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 16:13:30,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:13:30,267 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:13:30,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:13:30,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:13:30,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1695291180, now seen corresponding path program 1 times [2022-11-16 16:13:30,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:13:30,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5184840] [2022-11-16 16:13:30,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:13:30,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:13:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:13:32,372 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-16 16:13:32,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:13:32,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5184840] [2022-11-16 16:13:32,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5184840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:13:32,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:13:32,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:13:32,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544150106] [2022-11-16 16:13:32,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:13:32,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:13:32,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:13:32,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:13:32,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:13:32,453 INFO L87 Difference]: Start difference. First operand has 3336 states, 2023 states have (on average 1.4127533366287692) internal successors, (2858), 2201 states have internal predecessors, (2858), 1123 states have call successors, (1123), 189 states have call predecessors, (1123), 188 states have return successors, (1104), 1043 states have call predecessors, (1104), 1104 states have call successors, (1104) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 16:13:34,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:13:42,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:13:43,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:13:45,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:13:47,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:13:49,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:13:52,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:13:55,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:13:57,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:00,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:01,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:02,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:06,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:14:07,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:10,422 INFO L93 Difference]: Finished difference Result 9306 states and 14175 transitions. [2022-11-16 16:14:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:10,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2022-11-16 16:14:10,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:10,502 INFO L225 Difference]: With dead ends: 9306 [2022-11-16 16:14:10,502 INFO L226 Difference]: Without dead ends: 5920 [2022-11-16 16:14:10,534 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 [2022-11-16 16:14:10,537 INFO L413 NwaCegarLoop]: 5639 mSDtfsCounter, 3955 mSDsluCounter, 4553 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3957 SdHoareTripleChecker+Valid, 10192 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:10,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3957 Valid, 10192 Invalid, 1039 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1030 Invalid, 8 Unknown, 0 Unchecked, 37.2s Time] [2022-11-16 16:14:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5920 states. [2022-11-16 16:14:11,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5920 to 5913. [2022-11-16 16:14:11,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5913 states, 3590 states have (on average 1.392757660167131) internal successors, (5000), 3866 states have internal predecessors, (5000), 1972 states have call successors, (1972), 351 states have call predecessors, (1972), 350 states have return successors, (1971), 1860 states have call predecessors, (1971), 1971 states have call successors, (1971) [2022-11-16 16:14:11,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 8943 transitions. [2022-11-16 16:14:11,421 INFO L78 Accepts]: Start accepts. Automaton has 5913 states and 8943 transitions. Word has length 72 [2022-11-16 16:14:11,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:11,422 INFO L495 AbstractCegarLoop]: Abstraction has 5913 states and 8943 transitions. [2022-11-16 16:14:11,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 16:14:11,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5913 states and 8943 transitions. [2022-11-16 16:14:11,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-16 16:14:11,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:11,440 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-16 16:14:11,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:14:11,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:14:11,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1317473165, now seen corresponding path program 1 times [2022-11-16 16:14:11,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:11,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775418748] [2022-11-16 16:14:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:11,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 16:14:12,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:12,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775418748] [2022-11-16 16:14:12,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775418748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:12,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:12,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:14:12,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060982970] [2022-11-16 16:14:12,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:12,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:12,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:12,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:12,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:12,953 INFO L87 Difference]: Start difference. First operand 5913 states and 8943 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 16:14:15,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:20,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:22,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:23,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:25,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:27,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:29,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:31,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:34,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:14:40,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:42,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:45,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:14:46,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:48,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:52,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:14:53,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:53,060 INFO L93 Difference]: Finished difference Result 16357 states and 24792 transitions. [2022-11-16 16:14:53,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:53,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2022-11-16 16:14:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:53,130 INFO L225 Difference]: With dead ends: 16357 [2022-11-16 16:14:53,131 INFO L226 Difference]: Without dead ends: 10449 [2022-11-16 16:14:53,168 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 [2022-11-16 16:14:53,169 INFO L413 NwaCegarLoop]: 6113 mSDtfsCounter, 3887 mSDsluCounter, 4521 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3892 SdHoareTripleChecker+Valid, 10634 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:53,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3892 Valid, 10634 Invalid, 1106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1098 Invalid, 6 Unknown, 0 Unchecked, 39.5s Time] [2022-11-16 16:14:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10449 states. [2022-11-16 16:14:53,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10449 to 10444. [2022-11-16 16:14:53,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10444 states, 6350 states have (on average 1.4044094488188976) internal successors, (8918), 6864 states have internal predecessors, (8918), 3466 states have call successors, (3466), 628 states have call predecessors, (3466), 627 states have return successors, (3466), 3260 states have call predecessors, (3466), 3465 states have call successors, (3466) [2022-11-16 16:14:53,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10444 states to 10444 states and 15850 transitions. [2022-11-16 16:14:53,942 INFO L78 Accepts]: Start accepts. Automaton has 10444 states and 15850 transitions. Word has length 102 [2022-11-16 16:14:53,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:53,942 INFO L495 AbstractCegarLoop]: Abstraction has 10444 states and 15850 transitions. [2022-11-16 16:14:53,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 16:14:53,944 INFO L276 IsEmpty]: Start isEmpty. Operand 10444 states and 15850 transitions. [2022-11-16 16:14:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-16 16:14:54,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:54,066 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 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] [2022-11-16 16:14:54,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:14:54,066 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:14:54,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:54,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1120176973, now seen corresponding path program 1 times [2022-11-16 16:14:54,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:54,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678688291] [2022-11-16 16:14:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:54,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2022-11-16 16:14:55,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:55,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678688291] [2022-11-16 16:14:55,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678688291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:55,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:55,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:14:55,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795472427] [2022-11-16 16:14:55,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:55,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:55,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:55,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:55,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:55,487 INFO L87 Difference]: Start difference. First operand 10444 states and 15850 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-16 16:14:57,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:02,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:04,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:07,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:15:12,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:15,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:20,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:22,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:24,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:27,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:15:28,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:30,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:32,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:15:32,855 INFO L93 Difference]: Finished difference Result 20371 states and 31034 transitions. [2022-11-16 16:15:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:15:32,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 223 [2022-11-16 16:15:32,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:15:32,983 INFO L225 Difference]: With dead ends: 20371 [2022-11-16 16:15:32,983 INFO L226 Difference]: Without dead ends: 20368 [2022-11-16 16:15:32,996 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 [2022-11-16 16:15:33,002 INFO L413 NwaCegarLoop]: 5583 mSDtfsCounter, 4593 mSDsluCounter, 4520 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4596 SdHoareTripleChecker+Valid, 10103 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:15:33,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4596 Valid, 10103 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 967 Invalid, 10 Unknown, 0 Unchecked, 36.8s Time] [2022-11-16 16:15:33,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20368 states. [2022-11-16 16:15:34,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20368 to 20317. [2022-11-16 16:15:34,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20317 states, 12392 states have (on average 1.4109102646868947) internal successors, (17484), 13417 states have internal predecessors, (17484), 6705 states have call successors, (6705), 1220 states have call predecessors, (6705), 1219 states have return successors, (6749), 6294 states have call predecessors, (6749), 6704 states have call successors, (6749) [2022-11-16 16:15:34,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20317 states to 20317 states and 30938 transitions. [2022-11-16 16:15:34,435 INFO L78 Accepts]: Start accepts. Automaton has 20317 states and 30938 transitions. Word has length 223 [2022-11-16 16:15:34,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:15:34,438 INFO L495 AbstractCegarLoop]: Abstraction has 20317 states and 30938 transitions. [2022-11-16 16:15:34,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-16 16:15:34,438 INFO L276 IsEmpty]: Start isEmpty. Operand 20317 states and 30938 transitions. [2022-11-16 16:15:34,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-11-16 16:15:34,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:15:34,506 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:15:34,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:15:34,507 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:15:34,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:15:34,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1105300949, now seen corresponding path program 1 times [2022-11-16 16:15:34,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:15:34,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747949325] [2022-11-16 16:15:34,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:34,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:15:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:35,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1646 trivial. 0 not checked. [2022-11-16 16:15:35,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:15:35,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747949325] [2022-11-16 16:15:35,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747949325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:15:35,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:15:35,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:15:35,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040130233] [2022-11-16 16:15:35,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:15:35,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:15:35,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:15:35,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:15:35,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:15:35,978 INFO L87 Difference]: Start difference. First operand 20317 states and 30938 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-16 16:15:38,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:42,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:43,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:45,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:50,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:15:54,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:56,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:15:58,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:03,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:05,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:09,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:16:11,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:13,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:16:15,098 INFO L93 Difference]: Finished difference Result 40108 states and 61195 transitions. [2022-11-16 16:16:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:16:15,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 299 [2022-11-16 16:16:15,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:16:15,304 INFO L225 Difference]: With dead ends: 40108 [2022-11-16 16:16:15,305 INFO L226 Difference]: Without dead ends: 40105 [2022-11-16 16:16:15,326 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 [2022-11-16 16:16:15,328 INFO L413 NwaCegarLoop]: 5583 mSDtfsCounter, 4563 mSDsluCounter, 4520 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4566 SdHoareTripleChecker+Valid, 10103 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:16:15,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4566 Valid, 10103 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 968 Invalid, 9 Unknown, 0 Unchecked, 38.2s Time] [2022-11-16 16:16:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40105 states. [2022-11-16 16:16:17,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40105 to 40054. [2022-11-16 16:16:17,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40054 states, 24470 states have (on average 1.4142623620760115) internal successors, (34607), 26517 states have internal predecessors, (34607), 13180 states have call successors, (13180), 2404 states have call predecessors, (13180), 2403 states have return successors, (13312), 12359 states have call predecessors, (13312), 13179 states have call successors, (13312) [2022-11-16 16:16:18,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40054 states to 40054 states and 61099 transitions. [2022-11-16 16:16:18,122 INFO L78 Accepts]: Start accepts. Automaton has 40054 states and 61099 transitions. Word has length 299 [2022-11-16 16:16:18,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:16:18,123 INFO L495 AbstractCegarLoop]: Abstraction has 40054 states and 61099 transitions. [2022-11-16 16:16:18,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-16 16:16:18,124 INFO L276 IsEmpty]: Start isEmpty. Operand 40054 states and 61099 transitions. [2022-11-16 16:16:18,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-16 16:16:18,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:16:18,275 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:16:18,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:16:18,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:16:18,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:16:18,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1727247276, now seen corresponding path program 1 times [2022-11-16 16:16:18,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:16:18,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540006829] [2022-11-16 16:16:18,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:16:18,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:16:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:16:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2204 trivial. 0 not checked. [2022-11-16 16:16:20,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:16:20,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540006829] [2022-11-16 16:16:20,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540006829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:16:20,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:16:20,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:16:20,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81909080] [2022-11-16 16:16:20,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:16:20,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:16:20,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:16:20,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:16:20,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:16:20,256 INFO L87 Difference]: Start difference. First operand 40054 states and 61099 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-16 16:16:22,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:27,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:29,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:32,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:16:36,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:39,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:41,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:44,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:16:46,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:16:50,647 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 [] [2022-11-16 16:16:55,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:16:55,525 INFO L93 Difference]: Finished difference Result 49965 states and 76256 transitions. [2022-11-16 16:16:55,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:16:55,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 369 [2022-11-16 16:16:55,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:16:55,782 INFO L225 Difference]: With dead ends: 49965 [2022-11-16 16:16:55,783 INFO L226 Difference]: Without dead ends: 49962 [2022-11-16 16:16:55,809 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 [2022-11-16 16:16:55,810 INFO L413 NwaCegarLoop]: 5592 mSDtfsCounter, 4527 mSDsluCounter, 4520 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 10112 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:16:55,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 10112 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 968 Invalid, 7 Unknown, 0 Unchecked, 34.1s Time] [2022-11-16 16:16:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49962 states. [2022-11-16 16:16:58,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49962 to 49910. [2022-11-16 16:16:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49910 states, 30501 states have (on average 1.414937215173273) internal successors, (43157), 33059 states have internal predecessors, (43157), 16413 states have call successors, (16413), 2996 states have call predecessors, (16413), 2995 states have return successors, (16589), 15387 states have call predecessors, (16589), 16412 states have call successors, (16589) [2022-11-16 16:16:59,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49910 states to 49910 states and 76159 transitions. [2022-11-16 16:16:59,328 INFO L78 Accepts]: Start accepts. Automaton has 49910 states and 76159 transitions. Word has length 369 [2022-11-16 16:16:59,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:16:59,329 INFO L495 AbstractCegarLoop]: Abstraction has 49910 states and 76159 transitions. [2022-11-16 16:16:59,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-16 16:16:59,330 INFO L276 IsEmpty]: Start isEmpty. Operand 49910 states and 76159 transitions. [2022-11-16 16:16:59,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2022-11-16 16:16:59,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:16:59,544 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 20, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:16:59,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:16:59,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:16:59,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:16:59,545 INFO L85 PathProgramCache]: Analyzing trace with hash 622381559, now seen corresponding path program 1 times [2022-11-16 16:16:59,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:16:59,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919287535] [2022-11-16 16:16:59,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:16:59,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:17:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:17:05,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1915 trivial. 0 not checked. [2022-11-16 16:17:05,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:17:05,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919287535] [2022-11-16 16:17:05,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919287535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:17:05,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:17:05,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:17:05,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430846337] [2022-11-16 16:17:05,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:17:05,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:17:05,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:17:05,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:17:05,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:17:05,934 INFO L87 Difference]: Start difference. First operand 49910 states and 76159 transitions. Second operand has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (93), 3 states have call predecessors, (93), 3 states have call successors, (93) [2022-11-16 16:17:08,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:10,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:12,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:14,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:24,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:25,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:27,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:28,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:30,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:33,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:37,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:39,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:17:44,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:17:51,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:00,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:03,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:05,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:07,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:11,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:18:13,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:16,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:18:16,595 INFO L93 Difference]: Finished difference Result 152468 states and 239864 transitions. [2022-11-16 16:18:16,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:18:16,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (93), 3 states have call predecessors, (93), 3 states have call successors, (93) Word has length 658 [2022-11-16 16:18:16,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:18:17,335 INFO L225 Difference]: With dead ends: 152468 [2022-11-16 16:18:17,336 INFO L226 Difference]: Without dead ends: 102563 [2022-11-16 16:18:17,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:18:17,564 INFO L413 NwaCegarLoop]: 8286 mSDtfsCounter, 4258 mSDsluCounter, 19631 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 1281 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4814 SdHoareTripleChecker+Valid, 27917 SdHoareTripleChecker+Invalid, 3748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1281 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:18:17,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4814 Valid, 27917 Invalid, 3748 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1281 Valid, 2456 Invalid, 11 Unknown, 0 Unchecked, 67.1s Time] [2022-11-16 16:18:17,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102563 states. [2022-11-16 16:18:21,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102563 to 49930. [2022-11-16 16:18:21,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49930 states, 30521 states have (on average 1.4146653124078503) internal successors, (43177), 33079 states have internal predecessors, (43177), 16413 states have call successors, (16413), 2996 states have call predecessors, (16413), 2995 states have return successors, (16589), 15387 states have call predecessors, (16589), 16412 states have call successors, (16589) [2022-11-16 16:18:22,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49930 states to 49930 states and 76179 transitions. [2022-11-16 16:18:22,012 INFO L78 Accepts]: Start accepts. Automaton has 49930 states and 76179 transitions. Word has length 658 [2022-11-16 16:18:22,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:18:22,017 INFO L495 AbstractCegarLoop]: Abstraction has 49930 states and 76179 transitions. [2022-11-16 16:18:22,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (93), 3 states have call predecessors, (93), 3 states have call successors, (93) [2022-11-16 16:18:22,018 INFO L276 IsEmpty]: Start isEmpty. Operand 49930 states and 76179 transitions. [2022-11-16 16:18:22,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2022-11-16 16:18:22,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:18:22,215 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 20, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:18:22,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 16:18:22,216 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:18:22,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:18:22,217 INFO L85 PathProgramCache]: Analyzing trace with hash 902562678, now seen corresponding path program 1 times [2022-11-16 16:18:22,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:18:22,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034729154] [2022-11-16 16:18:22,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:18:22,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:18:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:18:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1911 trivial. 0 not checked. [2022-11-16 16:18:27,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:18:27,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034729154] [2022-11-16 16:18:27,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034729154] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:18:27,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079498164] [2022-11-16 16:18:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:18:27,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:18:27,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:18:27,034 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:18:27,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:18:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:18:35,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 23284 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:18:35,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:18:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2022-11-16 16:18:36,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:18:36,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079498164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:18:36,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 16:18:36,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-16 16:18:36,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251357928] [2022-11-16 16:18:36,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:18:36,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:18:36,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:18:36,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:18:36,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:18:36,021 INFO L87 Difference]: Start difference. First operand 49930 states and 76179 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2022-11-16 16:18:38,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:44,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:45,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:47,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:49,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:18:53,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:18:56,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:02,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:04,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:05,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:07,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:09,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:19:11,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:12,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:14,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:19:14,866 INFO L93 Difference]: Finished difference Result 99855 states and 152351 transitions. [2022-11-16 16:19:14,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:19:14,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 657 [2022-11-16 16:19:14,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:19:15,446 INFO L225 Difference]: With dead ends: 99855 [2022-11-16 16:19:15,447 INFO L226 Difference]: Without dead ends: 49930 [2022-11-16 16:19:15,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:19:15,657 INFO L413 NwaCegarLoop]: 4540 mSDtfsCounter, 62 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 9004 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:19:15,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 9004 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 954 Invalid, 8 Unknown, 0 Unchecked, 36.8s Time] [2022-11-16 16:19:15,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49930 states. [2022-11-16 16:19:18,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49930 to 49930. [2022-11-16 16:19:18,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49930 states, 30521 states have (on average 1.414337669145834) internal successors, (43167), 33069 states have internal predecessors, (43167), 16413 states have call successors, (16413), 2996 states have call predecessors, (16413), 2995 states have return successors, (16589), 15387 states have call predecessors, (16589), 16412 states have call successors, (16589) [2022-11-16 16:19:18,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49930 states to 49930 states and 76169 transitions. [2022-11-16 16:19:18,406 INFO L78 Accepts]: Start accepts. Automaton has 49930 states and 76169 transitions. Word has length 657 [2022-11-16 16:19:18,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:19:18,407 INFO L495 AbstractCegarLoop]: Abstraction has 49930 states and 76169 transitions. [2022-11-16 16:19:18,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2022-11-16 16:19:18,407 INFO L276 IsEmpty]: Start isEmpty. Operand 49930 states and 76169 transitions. [2022-11-16 16:19:18,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2022-11-16 16:19:18,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:19:18,581 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 23, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:19:18,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 16:19:18,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:19:18,806 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:19:18,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:19:18,807 INFO L85 PathProgramCache]: Analyzing trace with hash 504692223, now seen corresponding path program 1 times [2022-11-16 16:19:18,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:19:18,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236684055] [2022-11-16 16:19:18,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:19:18,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:19:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:19:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2075 trivial. 0 not checked. [2022-11-16 16:19:22,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:19:22,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236684055] [2022-11-16 16:19:22,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236684055] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:19:22,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784434546] [2022-11-16 16:19:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:19:22,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:19:22,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:19:22,384 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:19:22,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:19:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:19:31,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 23372 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:19:31,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:19:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 372 proven. 0 refuted. 0 times theorem prover too weak. 1713 trivial. 0 not checked. [2022-11-16 16:19:36,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:19:36,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784434546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:19:36,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 16:19:36,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 16:19:36,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211804252] [2022-11-16 16:19:36,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:19:36,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:19:36,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:19:36,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:19:36,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:19:36,267 INFO L87 Difference]: Start difference. First operand 49930 states and 76169 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 2 states have internal predecessors, (267), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2022-11-16 16:19:38,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:42,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:44,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:47,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:50,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:19:55,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:19:57,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:20:00,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:20:02,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:20:08,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:20:10,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:20:12,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:20:15,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:20:17,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:20:21,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:20:21,369 INFO L93 Difference]: Finished difference Result 149711 states and 228417 transitions. [2022-11-16 16:20:21,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:20:21,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 2 states have internal predecessors, (267), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) Word has length 680 [2022-11-16 16:20:21,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:20:21,802 INFO L225 Difference]: With dead ends: 149711 [2022-11-16 16:20:21,802 INFO L226 Difference]: Without dead ends: 99786 [2022-11-16 16:20:22,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 680 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:20:22,166 INFO L413 NwaCegarLoop]: 5660 mSDtfsCounter, 4646 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 10194 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:20:22,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4654 Valid, 10194 Invalid, 979 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 968 Invalid, 11 Unknown, 0 Unchecked, 41.5s Time] [2022-11-16 16:20:22,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99786 states. [2022-11-16 16:20:27,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99786 to 99762. [2022-11-16 16:20:27,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99762 states, 60987 states have (on average 1.4144817748044665) internal successors, (86265), 66082 states have internal predecessors, (86265), 32805 states have call successors, (32805), 5970 states have call predecessors, (32805), 5969 states have return successors, (33161), 30754 states have call predecessors, (33161), 32804 states have call successors, (33161) [2022-11-16 16:20:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99762 states to 99762 states and 152231 transitions. [2022-11-16 16:20:27,914 INFO L78 Accepts]: Start accepts. Automaton has 99762 states and 152231 transitions. Word has length 680 [2022-11-16 16:20:27,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:20:27,916 INFO L495 AbstractCegarLoop]: Abstraction has 99762 states and 152231 transitions. [2022-11-16 16:20:27,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 2 states have internal predecessors, (267), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2022-11-16 16:20:27,916 INFO L276 IsEmpty]: Start isEmpty. Operand 99762 states and 152231 transitions. [2022-11-16 16:20:28,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2022-11-16 16:20:28,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:20:28,622 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 23, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:20:28,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 16:20:28,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:20:28,834 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:20:28,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:20:28,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2057807173, now seen corresponding path program 1 times [2022-11-16 16:20:28,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:20:28,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67606670] [2022-11-16 16:20:28,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:20:28,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:20:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:20:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2075 trivial. 0 not checked. [2022-11-16 16:20:32,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:20:32,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67606670] [2022-11-16 16:20:32,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67606670] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:20:32,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12328480] [2022-11-16 16:20:32,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:20:32,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:20:32,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:20:32,550 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:20:32,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612e0059-0b3e-4198-94b6-ba175253625a/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:20:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:20:42,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 23414 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:20:42,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:20:47,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 1731 trivial. 0 not checked. [2022-11-16 16:20:47,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:20:47,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12328480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:20:47,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 16:20:47,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 16:20:47,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168669187] [2022-11-16 16:20:47,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:20:47,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:20:47,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:20:47,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:20:47,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:20:47,324 INFO L87 Difference]: Start difference. First operand 99762 states and 152231 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-16 16:20:49,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:20:54,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:20:57,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:21:01,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:21:08,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:21:10,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:21:17,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:21:20,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:21:23,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:21:25,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:21:27,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:21:30,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:21:34,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:21:36,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:21:36,232 INFO L93 Difference]: Finished difference Result 298465 states and 456878 transitions. [2022-11-16 16:21:36,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:21:36,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 682 [2022-11-16 16:21:36,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:21:38,037 INFO L225 Difference]: With dead ends: 298465 [2022-11-16 16:21:38,037 INFO L226 Difference]: Without dead ends: 198708 [2022-11-16 16:21:38,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 682 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:21:38,455 INFO L413 NwaCegarLoop]: 5646 mSDtfsCounter, 4585 mSDsluCounter, 4505 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 13 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4589 SdHoareTripleChecker+Valid, 10151 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:21:38,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4589 Valid, 10151 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 982 Invalid, 12 Unknown, 0 Unchecked, 41.5s Time] [2022-11-16 16:21:38,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198708 states.