./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS --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 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 --- 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-8393723 [2022-11-19 07:27:13,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:27:13,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:27:13,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:27:13,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:27:13,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:27:13,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:27:13,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:27:13,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:27:13,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:27:13,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:27:13,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:27:13,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:27:13,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:27:13,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:27:13,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:27:13,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:27:13,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:27:13,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:27:13,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:27:13,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:27:13,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:27:13,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:27:13,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:27:13,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:27:13,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:27:13,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:27:13,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:27:13,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:27:13,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:27:13,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:27:13,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:27:13,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:27:13,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:27:13,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:27:13,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:27:13,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:27:13,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:27:13,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:27:13,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:27:13,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:27:13,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:27:13,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:27:13,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:27:13,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:27:13,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:27:13,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:27:13,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:27:13,331 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:27:13,331 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:27:13,331 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:27:13,331 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:27:13,332 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:27:13,332 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:27:13,332 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:27:13,332 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:27:13,332 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:27:13,332 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:27:13,333 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:27:13,337 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:27:13,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:27:13,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:27:13,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:27:13,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:27:13,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:27:13,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:27:13,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:27:13,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:27:13,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:27:13,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:27:13,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:27:13,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:13,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:27:13,341 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:27:13,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:27:13,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:27:13,341 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:27:13,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:27:13,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:27:13,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:27:13,343 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_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 [2022-11-19 07:27:13,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:27:13,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:27:13,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:27:13,643 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:27:13,644 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:27:13,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2022-11-19 07:27:13,743 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/data/352c49c1f/d45332162b984f99b4237e86527dcf0b/FLAG521435d3d [2022-11-19 07:27:14,754 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:27:14,755 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2022-11-19 07:27:14,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/data/352c49c1f/d45332162b984f99b4237e86527dcf0b/FLAG521435d3d [2022-11-19 07:27:15,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/data/352c49c1f/d45332162b984f99b4237e86527dcf0b [2022-11-19 07:27:15,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:27:15,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:27:15,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:15,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:27:15,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:27:15,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:15" (1/1) ... [2022-11-19 07:27:15,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c7214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:15, skipping insertion in model container [2022-11-19 07:27:15,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:15" (1/1) ... [2022-11-19 07:27:15,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:27:15,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:27:17,684 WARN L234 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_fa96763f-5480-4892-85d4-913751e3a691/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2022-11-19 07:27:17,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:17,802 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:27:18,460 WARN L234 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_fa96763f-5480-4892-85d4-913751e3a691/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2022-11-19 07:27:18,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:18,613 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:27:18,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18 WrapperNode [2022-11-19 07:27:18,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:18,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:18,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:27:18,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:27:18,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,940 INFO L138 Inliner]: procedures = 274, calls = 2121, calls flagged for inlining = 123, calls inlined = 120, statements flattened = 4412 [2022-11-19 07:27:18,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:18,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:27:18,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:27:18,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:27:18,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:18,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:19,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:19,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:19,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:19,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:19,224 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:19,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:19,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:27:19,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:27:19,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:27:19,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:27:19,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (1/1) ... [2022-11-19 07:27:19,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:19,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:27:19,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:27:19,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:27:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-11-19 07:27:19,371 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-11-19 07:27:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-11-19 07:27:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-11-19 07:27:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:27:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:27:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 07:27:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 07:27:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:27:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:27:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:27:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:27:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-11-19 07:27:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-11-19 07:27:19,374 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-11-19 07:27:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-11-19 07:27:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:27:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:27:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-19 07:27:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-19 07:27:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:27:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:27:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-11-19 07:27:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-11-19 07:27:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-11-19 07:27:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-11-19 07:27:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:27:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:27:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:27:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:27:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:27:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:27:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-11-19 07:27:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-11-19 07:27:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:27:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:27:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 07:27:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 07:27:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-11-19 07:27:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-11-19 07:27:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2022-11-19 07:27:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2022-11-19 07:27:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-11-19 07:27:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-11-19 07:27:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-11-19 07:27:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-11-19 07:27:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-11-19 07:27:19,418 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-11-19 07:27:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 07:27:19,418 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 07:27:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_get_stats [2022-11-19 07:27:19,418 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_get_stats [2022-11-19 07:27:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:27:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-11-19 07:27:19,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-11-19 07:27:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-11-19 07:27:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-11-19 07:27:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-11-19 07:27:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-11-19 07:27:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:27:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 07:27:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 07:27:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-19 07:27:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-19 07:27:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:27:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:27:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-11-19 07:27:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-11-19 07:27:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:27:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-11-19 07:27:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-11-19 07:27:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:27:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 07:27:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 07:27:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-19 07:27:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-19 07:27:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:27:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:27:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-11-19 07:27:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-11-19 07:27:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:27:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:27:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-11-19 07:27:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-11-19 07:27:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 07:27:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 07:27:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-11-19 07:27:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-11-19 07:27:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-11-19 07:27:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-11-19 07:27:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:27:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:27:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-11-19 07:27:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-11-19 07:27:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:27:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:27:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:27:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-19 07:27:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-19 07:27:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:27:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:27:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:27:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:27:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-11-19 07:27:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-11-19 07:27:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-11-19 07:27:19,424 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-11-19 07:27:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:27:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:27:19,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:27:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 07:27:19,424 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 07:27:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-19 07:27:19,424 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-19 07:27:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:27:19,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:27:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-11-19 07:27:19,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-11-19 07:27:19,430 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ioctl [2022-11-19 07:27:19,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ioctl [2022-11-19 07:27:19,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 07:27:19,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 07:27:19,431 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-11-19 07:27:19,431 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-11-19 07:27:19,431 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-19 07:27:19,431 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-19 07:27:19,432 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-11-19 07:27:19,432 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-11-19 07:27:19,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:27:19,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 07:27:19,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 07:27:19,432 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 07:27:19,433 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 07:27:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:27:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:27:19,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:27:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:27:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-11-19 07:27:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-11-19 07:27:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-19 07:27:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-19 07:27:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-11-19 07:27:19,439 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-11-19 07:27:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:27:19,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:27:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:27:19,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:27:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-11-19 07:27:19,440 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-11-19 07:27:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 07:27:19,440 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 07:27:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-11-19 07:27:19,440 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-11-19 07:27:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 07:27:19,440 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 07:27:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:27:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-11-19 07:27:19,441 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-11-19 07:27:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 07:27:19,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 07:27:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-19 07:27:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-19 07:27:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-19 07:27:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-19 07:27:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:27:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:27:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-19 07:27:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-19 07:27:20,268 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:27:20,273 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:27:21,443 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:27:25,829 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:27:27,356 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:27:27,356 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:27:27,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:27 BoogieIcfgContainer [2022-11-19 07:27:27,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:27:27,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:27:27,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:27:27,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:27:27,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:27:15" (1/3) ... [2022-11-19 07:27:27,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf47786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:27, skipping insertion in model container [2022-11-19 07:27:27,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:18" (2/3) ... [2022-11-19 07:27:27,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf47786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:27, skipping insertion in model container [2022-11-19 07:27:27,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:27" (3/3) ... [2022-11-19 07:27:27,371 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2022-11-19 07:27:27,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:27:27,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:27:27,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:27:27,501 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;@49f6a0a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:27:27,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:27:27,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 1446 states, 806 states have (on average 1.3064516129032258) internal successors, (1053), 854 states have internal predecessors, (1053), 563 states have call successors, (563), 76 states have call predecessors, (563), 75 states have return successors, (557), 542 states have call predecessors, (557), 557 states have call successors, (557) [2022-11-19 07:27:27,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-19 07:27:27,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:27,541 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:27,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:27,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:27,550 INFO L85 PathProgramCache]: Analyzing trace with hash -2087939323, now seen corresponding path program 1 times [2022-11-19 07:27:27,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:27,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529960794] [2022-11-19 07:27:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:27,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 07:27:28,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:28,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529960794] [2022-11-19 07:27:28,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529960794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:28,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:28,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:27:28,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567871857] [2022-11-19 07:27:28,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:28,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:27:28,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:28,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:27:28,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:27:28,379 INFO L87 Difference]: Start difference. First operand has 1446 states, 806 states have (on average 1.3064516129032258) internal successors, (1053), 854 states have internal predecessors, (1053), 563 states have call successors, (563), 76 states have call predecessors, (563), 75 states have return successors, (557), 542 states have call predecessors, (557), 557 states have call successors, (557) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-19 07:27:31,320 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 [] [2022-11-19 07:27:33,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:33,375 INFO L93 Difference]: Finished difference Result 4253 states and 6466 transitions. [2022-11-19 07:27:33,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:27:33,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 72 [2022-11-19 07:27:33,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:33,452 INFO L225 Difference]: With dead ends: 4253 [2022-11-19 07:27:33,452 INFO L226 Difference]: Without dead ends: 2805 [2022-11-19 07:27:33,479 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 [2022-11-19 07:27:33,484 INFO L413 NwaCegarLoop]: 2651 mSDtfsCounter, 2076 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 4587 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:33,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2076 Valid, 4587 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 07:27:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2022-11-19 07:27:33,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2802. [2022-11-19 07:27:33,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 1567 states have (on average 1.2967453733248244) internal successors, (2032), 1645 states have internal predecessors, (2032), 1087 states have call successors, (1087), 148 states have call predecessors, (1087), 147 states have return successors, (1086), 1056 states have call predecessors, (1086), 1086 states have call successors, (1086) [2022-11-19 07:27:33,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 4205 transitions. [2022-11-19 07:27:33,948 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 4205 transitions. Word has length 72 [2022-11-19 07:27:33,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:33,949 INFO L495 AbstractCegarLoop]: Abstraction has 2802 states and 4205 transitions. [2022-11-19 07:27:33,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-19 07:27:33,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 4205 transitions. [2022-11-19 07:27:33,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-19 07:27:33,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:33,960 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:33,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:27:33,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:33,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:33,965 INFO L85 PathProgramCache]: Analyzing trace with hash -472674266, now seen corresponding path program 1 times [2022-11-19 07:27:33,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:33,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276450254] [2022-11-19 07:27:33,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:33,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-19 07:27:34,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:34,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276450254] [2022-11-19 07:27:34,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276450254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:34,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:34,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:27:34,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303522058] [2022-11-19 07:27:34,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:34,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:27:34,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:34,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:27:34,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:27:34,460 INFO L87 Difference]: Start difference. First operand 2802 states and 4205 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 07:27:37,039 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 [] [2022-11-19 07:27:39,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:39,928 INFO L93 Difference]: Finished difference Result 5126 states and 7742 transitions. [2022-11-19 07:27:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:27:39,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2022-11-19 07:27:39,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:40,039 INFO L225 Difference]: With dead ends: 5126 [2022-11-19 07:27:40,039 INFO L226 Difference]: Without dead ends: 5123 [2022-11-19 07:27:40,044 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 [2022-11-19 07:27:40,046 INFO L413 NwaCegarLoop]: 3119 mSDtfsCounter, 1838 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 5001 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:40,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 5001 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-19 07:27:40,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2022-11-19 07:27:40,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 5066. [2022-11-19 07:27:40,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5066 states, 2863 states have (on average 1.3094655955291652) internal successors, (3749), 3019 states have internal predecessors, (3749), 1926 states have call successors, (1926), 281 states have call predecessors, (1926), 276 states have return successors, (1966), 1847 states have call predecessors, (1966), 1925 states have call successors, (1966) [2022-11-19 07:27:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5066 states to 5066 states and 7641 transitions. [2022-11-19 07:27:40,423 INFO L78 Accepts]: Start accepts. Automaton has 5066 states and 7641 transitions. Word has length 93 [2022-11-19 07:27:40,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:40,426 INFO L495 AbstractCegarLoop]: Abstraction has 5066 states and 7641 transitions. [2022-11-19 07:27:40,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 07:27:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 7641 transitions. [2022-11-19 07:27:40,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-19 07:27:40,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:40,445 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:40,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:27:40,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:40,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:40,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1346353894, now seen corresponding path program 1 times [2022-11-19 07:27:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:40,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197044784] [2022-11-19 07:27:40,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:27:41,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:41,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197044784] [2022-11-19 07:27:41,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197044784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:41,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:41,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:27:41,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359731386] [2022-11-19 07:27:41,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:41,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:27:41,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:41,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:27:41,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:27:41,082 INFO L87 Difference]: Start difference. First operand 5066 states and 7641 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 07:27:43,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:45,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:47,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:53,897 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 [] [2022-11-19 07:27:55,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:55,140 INFO L93 Difference]: Finished difference Result 15078 states and 22801 transitions. [2022-11-19 07:27:55,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:27:55,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 139 [2022-11-19 07:27:55,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:55,258 INFO L225 Difference]: With dead ends: 15078 [2022-11-19 07:27:55,259 INFO L226 Difference]: Without dead ends: 10038 [2022-11-19 07:27:55,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:27:55,331 INFO L413 NwaCegarLoop]: 2483 mSDtfsCounter, 2108 mSDsluCounter, 6888 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2112 SdHoareTripleChecker+Valid, 9371 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:55,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2112 Valid, 9371 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 853 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2022-11-19 07:27:55,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10038 states. [2022-11-19 07:27:56,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10038 to 10011. [2022-11-19 07:27:56,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10011 states, 5669 states have (on average 1.3109895925207267) internal successors, (7432), 5989 states have internal predecessors, (7432), 3793 states have call successors, (3793), 553 states have call predecessors, (3793), 548 states have return successors, (3920), 3632 states have call predecessors, (3920), 3792 states have call successors, (3920) [2022-11-19 07:27:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10011 states to 10011 states and 15145 transitions. [2022-11-19 07:27:56,225 INFO L78 Accepts]: Start accepts. Automaton has 10011 states and 15145 transitions. Word has length 139 [2022-11-19 07:27:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:56,225 INFO L495 AbstractCegarLoop]: Abstraction has 10011 states and 15145 transitions. [2022-11-19 07:27:56,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 07:27:56,227 INFO L276 IsEmpty]: Start isEmpty. Operand 10011 states and 15145 transitions. [2022-11-19 07:27:56,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-19 07:27:56,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:56,243 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:56,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:27:56,243 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:56,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:56,244 INFO L85 PathProgramCache]: Analyzing trace with hash 553732855, now seen corresponding path program 1 times [2022-11-19 07:27:56,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:56,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288524349] [2022-11-19 07:27:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:56,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:56,812 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:27:56,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:56,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288524349] [2022-11-19 07:27:56,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288524349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:56,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:56,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:27:56,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44966748] [2022-11-19 07:27:56,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:56,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:27:56,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:56,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:27:56,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:27:56,816 INFO L87 Difference]: Start difference. First operand 10011 states and 15145 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 07:28:00,057 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 [] [2022-11-19 07:28:04,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:04,044 INFO L93 Difference]: Finished difference Result 24494 states and 37039 transitions. [2022-11-19 07:28:04,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:28:04,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 140 [2022-11-19 07:28:04,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:04,191 INFO L225 Difference]: With dead ends: 24494 [2022-11-19 07:28:04,191 INFO L226 Difference]: Without dead ends: 14509 [2022-11-19 07:28:04,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:28:04,291 INFO L413 NwaCegarLoop]: 2616 mSDtfsCounter, 2070 mSDsluCounter, 7154 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 9770 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:04,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 9770 Invalid, 892 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 888 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 07:28:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14509 states. [2022-11-19 07:28:05,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14509 to 14483. [2022-11-19 07:28:05,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14483 states, 8152 states have (on average 1.3048331697742885) internal successors, (10637), 8615 states have internal predecessors, (10637), 5536 states have call successors, (5536), 801 states have call predecessors, (5536), 794 states have return successors, (5711), 5310 states have call predecessors, (5711), 5535 states have call successors, (5711) [2022-11-19 07:28:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14483 states to 14483 states and 21884 transitions. [2022-11-19 07:28:05,374 INFO L78 Accepts]: Start accepts. Automaton has 14483 states and 21884 transitions. Word has length 140 [2022-11-19 07:28:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:05,375 INFO L495 AbstractCegarLoop]: Abstraction has 14483 states and 21884 transitions. [2022-11-19 07:28:05,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 07:28:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 14483 states and 21884 transitions. [2022-11-19 07:28:05,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-19 07:28:05,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:05,391 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:05,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:28:05,392 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:28:05,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:05,392 INFO L85 PathProgramCache]: Analyzing trace with hash 766512957, now seen corresponding path program 1 times [2022-11-19 07:28:05,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:05,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386786956] [2022-11-19 07:28:05,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:05,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:28:05,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:05,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386786956] [2022-11-19 07:28:05,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386786956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:05,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:05,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:28:05,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136140869] [2022-11-19 07:28:05,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:05,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:28:05,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:05,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:28:05,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:28:05,807 INFO L87 Difference]: Start difference. First operand 14483 states and 21884 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 07:28:09,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:15,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:17,024 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 [] [2022-11-19 07:28:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:18,169 INFO L93 Difference]: Finished difference Result 28995 states and 43803 transitions. [2022-11-19 07:28:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:28:18,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 141 [2022-11-19 07:28:18,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:18,281 INFO L225 Difference]: With dead ends: 28995 [2022-11-19 07:28:18,281 INFO L226 Difference]: Without dead ends: 14538 [2022-11-19 07:28:18,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:28:18,392 INFO L413 NwaCegarLoop]: 2483 mSDtfsCounter, 2105 mSDsluCounter, 6888 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 9371 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:18,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 9371 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 854 Invalid, 3 Unknown, 0 Unchecked, 11.4s Time] [2022-11-19 07:28:18,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14538 states. [2022-11-19 07:28:19,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14538 to 14513. [2022-11-19 07:28:19,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14513 states, 8176 states have (on average 1.3039383561643836) internal successors, (10661), 8639 states have internal predecessors, (10661), 5536 states have call successors, (5536), 807 states have call predecessors, (5536), 800 states have return successors, (5707), 5310 states have call predecessors, (5707), 5535 states have call successors, (5707) [2022-11-19 07:28:19,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14513 states to 14513 states and 21904 transitions. [2022-11-19 07:28:19,600 INFO L78 Accepts]: Start accepts. Automaton has 14513 states and 21904 transitions. Word has length 141 [2022-11-19 07:28:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:19,601 INFO L495 AbstractCegarLoop]: Abstraction has 14513 states and 21904 transitions. [2022-11-19 07:28:19,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 07:28:19,602 INFO L276 IsEmpty]: Start isEmpty. Operand 14513 states and 21904 transitions. [2022-11-19 07:28:19,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-19 07:28:19,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:19,617 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:19,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:28:19,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:28:19,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:19,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1499754572, now seen corresponding path program 1 times [2022-11-19 07:28:19,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:19,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303367865] [2022-11-19 07:28:19,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:19,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:19,993 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:28:19,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:19,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303367865] [2022-11-19 07:28:19,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303367865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:19,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:19,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:28:19,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420366817] [2022-11-19 07:28:19,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:19,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:28:19,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:19,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:28:19,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:28:19,997 INFO L87 Difference]: Start difference. First operand 14513 states and 21904 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 07:28:23,433 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 [] [2022-11-19 07:28:27,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:27,104 INFO L93 Difference]: Finished difference Result 33030 states and 49829 transitions. [2022-11-19 07:28:27,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:28:27,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 138 [2022-11-19 07:28:27,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:27,235 INFO L225 Difference]: With dead ends: 33030 [2022-11-19 07:28:27,235 INFO L226 Difference]: Without dead ends: 18543 [2022-11-19 07:28:27,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:28:27,357 INFO L413 NwaCegarLoop]: 2599 mSDtfsCounter, 1882 mSDsluCounter, 7122 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 9721 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:27,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 9721 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 918 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-19 07:28:27,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18543 states. [2022-11-19 07:28:28,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18543 to 18473. [2022-11-19 07:28:28,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18473 states, 10331 states have (on average 1.2991965927790146) internal successors, (13422), 10923 states have internal predecessors, (13422), 7119 states have call successors, (7119), 1029 states have call predecessors, (7119), 1022 states have return successors, (7334), 6830 states have call predecessors, (7334), 7118 states have call successors, (7334) [2022-11-19 07:28:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18473 states to 18473 states and 27875 transitions. [2022-11-19 07:28:29,166 INFO L78 Accepts]: Start accepts. Automaton has 18473 states and 27875 transitions. Word has length 138 [2022-11-19 07:28:29,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:29,167 INFO L495 AbstractCegarLoop]: Abstraction has 18473 states and 27875 transitions. [2022-11-19 07:28:29,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 07:28:29,167 INFO L276 IsEmpty]: Start isEmpty. Operand 18473 states and 27875 transitions. [2022-11-19 07:28:29,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-19 07:28:29,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:29,203 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:29,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:28:29,204 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:28:29,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:29,204 INFO L85 PathProgramCache]: Analyzing trace with hash -593795502, now seen corresponding path program 1 times [2022-11-19 07:28:29,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:29,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761552676] [2022-11-19 07:28:29,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:29,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-19 07:28:29,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:29,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761552676] [2022-11-19 07:28:29,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761552676] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:28:29,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461548348] [2022-11-19 07:28:29,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:29,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:28:29,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:28:29,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:28:29,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:28:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:30,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 2331 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:28:30,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:28:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:28:31,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:28:31,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461548348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:31,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:28:31,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-11-19 07:28:31,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119785617] [2022-11-19 07:28:31,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:31,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:28:31,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:31,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:28:31,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:28:31,085 INFO L87 Difference]: Start difference. First operand 18473 states and 27875 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:28:35,383 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 [] [2022-11-19 07:28:41,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:41,747 INFO L93 Difference]: Finished difference Result 46925 states and 70831 transitions. [2022-11-19 07:28:41,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:28:41,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 151 [2022-11-19 07:28:41,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:42,035 INFO L225 Difference]: With dead ends: 46925 [2022-11-19 07:28:42,035 INFO L226 Difference]: Without dead ends: 32438 [2022-11-19 07:28:42,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-11-19 07:28:42,390 INFO L413 NwaCegarLoop]: 2756 mSDtfsCounter, 2100 mSDsluCounter, 12955 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 15711 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:42,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 15711 Invalid, 1527 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1524 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-11-19 07:28:42,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32438 states. [2022-11-19 07:28:44,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32438 to 32273. [2022-11-19 07:28:44,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32273 states, 18084 states have (on average 1.3024220305242202) internal successors, (23553), 19153 states have internal predecessors, (23553), 12398 states have call successors, (12398), 1795 states have call predecessors, (12398), 1790 states have return successors, (12819), 11864 states have call predecessors, (12819), 12397 states have call successors, (12819) [2022-11-19 07:28:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32273 states to 32273 states and 48770 transitions. [2022-11-19 07:28:44,982 INFO L78 Accepts]: Start accepts. Automaton has 32273 states and 48770 transitions. Word has length 151 [2022-11-19 07:28:44,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:44,984 INFO L495 AbstractCegarLoop]: Abstraction has 32273 states and 48770 transitions. [2022-11-19 07:28:44,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:28:44,984 INFO L276 IsEmpty]: Start isEmpty. Operand 32273 states and 48770 transitions. [2022-11-19 07:28:45,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-19 07:28:45,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:45,342 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:45,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:28:45,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 07:28:45,558 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:28:45,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:45,559 INFO L85 PathProgramCache]: Analyzing trace with hash 782019185, now seen corresponding path program 1 times [2022-11-19 07:28:45,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:45,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510819391] [2022-11-19 07:28:45,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:45,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:46,251 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:28:46,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:46,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510819391] [2022-11-19 07:28:46,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510819391] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:28:46,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582625913] [2022-11-19 07:28:46,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:46,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:28:46,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:28:46,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:28:46,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:28:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:47,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 2333 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:28:47,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:28:47,379 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:28:47,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:28:47,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582625913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:47,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:28:47,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-19 07:28:47,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073025215] [2022-11-19 07:28:47,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:47,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:28:47,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:47,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:28:47,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-19 07:28:47,382 INFO L87 Difference]: Start difference. First operand 32273 states and 48770 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:28:50,999 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 [] [2022-11-19 07:28:54,570 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 [] [2022-11-19 07:29:00,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:00,860 INFO L93 Difference]: Finished difference Result 74575 states and 112667 transitions. [2022-11-19 07:29:00,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:29:00,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2022-11-19 07:29:00,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:01,268 INFO L225 Difference]: With dead ends: 74575 [2022-11-19 07:29:01,269 INFO L226 Difference]: Without dead ends: 46288 [2022-11-19 07:29:01,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:29:01,496 INFO L413 NwaCegarLoop]: 2762 mSDtfsCounter, 2100 mSDsluCounter, 12967 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 15729 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:01,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 15729 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1525 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2022-11-19 07:29:01,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46288 states. [2022-11-19 07:29:04,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46288 to 46091. [2022-11-19 07:29:04,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46091 states, 25847 states have (on average 1.3035942275699308) internal successors, (33694), 27407 states have internal predecessors, (33694), 17677 states have call successors, (17677), 2561 states have call predecessors, (17677), 2566 states have return successors, (18312), 16892 states have call predecessors, (18312), 17676 states have call successors, (18312) [2022-11-19 07:29:04,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46091 states to 46091 states and 69683 transitions. [2022-11-19 07:29:04,806 INFO L78 Accepts]: Start accepts. Automaton has 46091 states and 69683 transitions. Word has length 152 [2022-11-19 07:29:04,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:04,807 INFO L495 AbstractCegarLoop]: Abstraction has 46091 states and 69683 transitions. [2022-11-19 07:29:04,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:29:04,807 INFO L276 IsEmpty]: Start isEmpty. Operand 46091 states and 69683 transitions. [2022-11-19 07:29:04,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-19 07:29:04,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:04,848 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:29:04,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:29:05,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:29:05,058 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:29:05,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:05,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1931237241, now seen corresponding path program 1 times [2022-11-19 07:29:05,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:05,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195120641] [2022-11-19 07:29:05,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:05,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:05,764 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:29:05,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:05,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195120641] [2022-11-19 07:29:05,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195120641] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:29:05,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576184850] [2022-11-19 07:29:05,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:05,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:29:05,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:29:05,769 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:29:05,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:29:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:06,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 2335 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:29:06,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:29:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:29:06,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:29:06,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576184850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:06,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:29:06,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-19 07:29:06,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098626995] [2022-11-19 07:29:06,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:06,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:29:06,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:06,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:29:06,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-19 07:29:06,838 INFO L87 Difference]: Start difference. First operand 46091 states and 69683 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:29:11,316 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 [] [2022-11-19 07:29:13,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:15,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:17,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:19,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:25,244 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 [] [2022-11-19 07:29:29,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:29,025 INFO L93 Difference]: Finished difference Result 102287 states and 154599 transitions. [2022-11-19 07:29:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:29:29,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2022-11-19 07:29:29,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:29,579 INFO L225 Difference]: With dead ends: 102287 [2022-11-19 07:29:29,580 INFO L226 Difference]: Without dead ends: 60182 [2022-11-19 07:29:29,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:29:29,842 INFO L413 NwaCegarLoop]: 2629 mSDtfsCounter, 2136 mSDsluCounter, 12435 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 15064 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:29,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 15064 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1466 Invalid, 5 Unknown, 0 Unchecked, 18.9s Time] [2022-11-19 07:29:29,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60182 states. [2022-11-19 07:29:33,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60182 to 59861. [2022-11-19 07:29:33,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59861 states, 33558 states have (on average 1.3041599618570832) internal successors, (43765), 35585 states have internal predecessors, (43765), 22976 states have call successors, (22976), 3317 states have call predecessors, (22976), 3326 states have return successors, (23817), 21958 states have call predecessors, (23817), 22975 states have call successors, (23817) [2022-11-19 07:29:33,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59861 states to 59861 states and 90558 transitions. [2022-11-19 07:29:33,685 INFO L78 Accepts]: Start accepts. Automaton has 59861 states and 90558 transitions. Word has length 153 [2022-11-19 07:29:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:33,685 INFO L495 AbstractCegarLoop]: Abstraction has 59861 states and 90558 transitions. [2022-11-19 07:29:33,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:29:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 59861 states and 90558 transitions. [2022-11-19 07:29:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-19 07:29:33,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:33,725 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:29:33,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:29:33,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:29:33,936 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:29:33,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:33,936 INFO L85 PathProgramCache]: Analyzing trace with hash 350927032, now seen corresponding path program 1 times [2022-11-19 07:29:33,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:33,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585911400] [2022-11-19 07:29:33,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:33,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:34,763 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:29:34,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:34,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585911400] [2022-11-19 07:29:34,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585911400] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:29:34,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291558319] [2022-11-19 07:29:34,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:34,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:29:34,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:29:34,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:29:34,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:29:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:35,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 2337 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:29:35,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:29:35,849 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-19 07:29:35,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:29:35,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291558319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:35,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:29:35,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-19 07:29:35,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639527754] [2022-11-19 07:29:35,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:35,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:29:35,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:35,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:29:35,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-19 07:29:35,852 INFO L87 Difference]: Start difference. First operand 59861 states and 90558 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:29:39,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:41,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:43,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:45,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:47,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:49,394 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 [] [2022-11-19 07:29:59,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:59,602 INFO L93 Difference]: Finished difference Result 134764 states and 203831 transitions. [2022-11-19 07:29:59,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:29:59,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 154 [2022-11-19 07:29:59,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:00,128 INFO L225 Difference]: With dead ends: 134764 [2022-11-19 07:30:00,128 INFO L226 Difference]: Without dead ends: 78889 [2022-11-19 07:30:00,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:30:00,611 INFO L413 NwaCegarLoop]: 2629 mSDtfsCounter, 2136 mSDsluCounter, 12435 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 15064 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:00,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 15064 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1468 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2022-11-19 07:30:00,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78889 states. [2022-11-19 07:30:03,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78889 to 59865. [2022-11-19 07:30:03,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59865 states, 33562 states have (on average 1.3041237113402062) internal successors, (43769), 35585 states have internal predecessors, (43769), 22976 states have call successors, (22976), 3317 states have call predecessors, (22976), 3326 states have return successors, (23817), 21962 states have call predecessors, (23817), 22975 states have call successors, (23817) [2022-11-19 07:30:04,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59865 states to 59865 states and 90562 transitions. [2022-11-19 07:30:04,411 INFO L78 Accepts]: Start accepts. Automaton has 59865 states and 90562 transitions. Word has length 154 [2022-11-19 07:30:04,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:04,411 INFO L495 AbstractCegarLoop]: Abstraction has 59865 states and 90562 transitions. [2022-11-19 07:30:04,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:30:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 59865 states and 90562 transitions. [2022-11-19 07:30:04,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-19 07:30:04,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:04,454 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:30:04,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:30:04,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 07:30:04,655 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:30:04,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:04,655 INFO L85 PathProgramCache]: Analyzing trace with hash 770961925, now seen corresponding path program 1 times [2022-11-19 07:30:04,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:04,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421723013] [2022-11-19 07:30:04,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:04,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:05,472 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-19 07:30:05,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:05,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421723013] [2022-11-19 07:30:05,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421723013] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:30:05,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656464924] [2022-11-19 07:30:05,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:05,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:30:05,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:30:05,474 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:30:05,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96763f-5480-4892-85d4-913751e3a691/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:30:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:06,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 2408 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:30:06,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:30:06,595 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-19 07:30:06,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:30:07,007 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-19 07:30:07,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656464924] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:30:07,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1005072822] [2022-11-19 07:30:07,031 INFO L159 IcfgInterpreter]: Started Sifa with 106 locations of interest [2022-11-19 07:30:07,031 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:30:07,035 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:30:07,041 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:30:07,041 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:30:09,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-19 07:30:09,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-19 07:30:09,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-19 07:30:09,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-19 07:30:10,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:10,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:10,340 INFO L217 Elim1Store]: Index analysis took 513 ms [2022-11-19 07:30:37,364 WARN L233 SmtUtils]: Spent 26.97s on a formula simplification. DAG size of input: 1666 DAG size of output: 963 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:30:37,369 INFO L321 Elim1Store]: treesize reduction 3209, result has 33.8 percent of original size [2022-11-19 07:30:37,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 139 select indices, 139 select index equivalence classes, 9595 disjoint index pairs (out of 9591 index pairs), introduced 139 new quantified variables, introduced 139 case distinctions, treesize of input 705 treesize of output 2068 [2022-11-19 07:30:40,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:40,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:40,936 INFO L217 Elim1Store]: Index analysis took 1417 ms [2022-11-19 07:31:24,548 WARN L233 SmtUtils]: Spent 43.58s on a formula simplification. DAG size of input: 2223 DAG size of output: 1111 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:31:24,551 INFO L321 Elim1Store]: treesize reduction 5266, result has 25.5 percent of original size [2022-11-19 07:31:24,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 142 select indices, 142 select index equivalence classes, 9734 disjoint index pairs (out of 10011 index pairs), introduced 142 new quantified variables, introduced 417 case distinctions, treesize of input 724 treesize of output 2245 [2022-11-19 07:31:27,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-19 07:31:27,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-19 07:31:27,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-19 07:31:36,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:31:36,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:31:36,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-19 07:31:40,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:40,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 252 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 127 [2022-11-19 07:31:41,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:41,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:41,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 141 select indices, 141 select index equivalence classes, 9872 disjoint index pairs (out of 9870 index pairs), introduced 141 new quantified variables, introduced 0 case distinctions, treesize of input 706 treesize of output 424 [2022-11-19 07:31:42,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:42,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:42,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 142 select indices, 142 select index equivalence classes, 10011 disjoint index pairs (out of 10011 index pairs), introduced 142 new quantified variables, introduced 0 case distinctions, treesize of input 711 treesize of output 427 [2022-11-19 07:31:53,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 142 select indices, 142 select index equivalence classes, 10011 disjoint index pairs (out of 10011 index pairs), introduced 142 new quantified variables, introduced 0 case distinctions, treesize of input 711 treesize of output 427 [2022-11-19 07:31:53,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:53,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 252 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 127 [2022-11-19 07:31:54,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:54,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:54,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 141 select indices, 141 select index equivalence classes, 9872 disjoint index pairs (out of 9870 index pairs), introduced 141 new quantified variables, introduced 0 case distinctions, treesize of input 706 treesize of output 424