./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.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_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/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_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/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_0008bd6c-2813-4077-bf2a-9870841915ba/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 aa00a102435cd9be2574d2e777aad2e91126f080f8422a74b94328a4b8d020d8 --- 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 07:20:26,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:20:26,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:20:26,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:20:26,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:20:26,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:20:26,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:20:26,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:20:26,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:20:26,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:20:26,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:20:26,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:20:26,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:20:26,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:20:26,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:20:26,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:20:26,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:20:26,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:20:26,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:20:26,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:20:26,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:20:26,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:20:26,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:20:26,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:20:26,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:20:26,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:20:26,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:20:26,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:20:26,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:20:26,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:20:26,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:20:26,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:20:26,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:20:26,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:20:26,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:20:26,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:20:26,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:20:26,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:20:26,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:20:26,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:20:26,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:20:26,213 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:20:26,242 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:20:26,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:20:26,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:20:26,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:20:26,244 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:20:26,244 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:20:26,244 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:20:26,245 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:20:26,245 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:20:26,245 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:20:26,245 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:20:26,246 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:20:26,246 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:20:26,246 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:20:26,246 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:20:26,247 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:20:26,247 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:20:26,247 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:20:26,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:20:26,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:20:26,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:20:26,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:20:26,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:20:26,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:20:26,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:20:26,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:20:26,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:20:26,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:20:26,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:20:26,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:20:26,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:20:26,252 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:20:26,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:20:26,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:20:26,252 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:20:26,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:20:26,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:20:26,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:20:26,253 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_0008bd6c-2813-4077-bf2a-9870841915ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00a102435cd9be2574d2e777aad2e91126f080f8422a74b94328a4b8d020d8 [2022-11-19 07:20:26,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:20:26,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:20:26,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:20:26,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:20:26,660 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:20:26,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-19 07:20:26,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/data/9832b88bc/7249ed38bbd1454699c733816db197c5/FLAG71b0f0b4c [2022-11-19 07:20:27,715 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:20:27,716 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-19 07:20:27,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/data/9832b88bc/7249ed38bbd1454699c733816db197c5/FLAG71b0f0b4c [2022-11-19 07:20:28,230 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/data/9832b88bc/7249ed38bbd1454699c733816db197c5 [2022-11-19 07:20:28,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:20:28,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:20:28,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:20:28,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:20:28,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:20:28,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:20:28" (1/1) ... [2022-11-19 07:20:28,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@508c7bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:28, skipping insertion in model container [2022-11-19 07:20:28,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:20:28" (1/1) ... [2022-11-19 07:20:28,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:20:28,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:20:29,614 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_0008bd6c-2813-4077-bf2a-9870841915ba/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i[120657,120670] [2022-11-19 07:20:29,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:20:29,693 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:20:30,105 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_0008bd6c-2813-4077-bf2a-9870841915ba/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i[120657,120670] [2022-11-19 07:20:30,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:20:30,201 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:20:30,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30 WrapperNode [2022-11-19 07:20:30,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:20:30,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:20:30,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:20:30,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:20:30,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,492 INFO L138 Inliner]: procedures = 150, calls = 824, calls flagged for inlining = 62, calls inlined = 44, statements flattened = 1713 [2022-11-19 07:20:30,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:20:30,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:20:30,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:20:30,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:20:30,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,662 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:20:30,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:20:30,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:20:30,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:20:30,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (1/1) ... [2022-11-19 07:20:30,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:20:30,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:20:30,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:20:30,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:20:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-19 07:20:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-19 07:20:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:20:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2022-11-19 07:20:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2022-11-19 07:20:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:20:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:20:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:20:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:20:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:20:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:20:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:20:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure aem_init_ipmi_data [2022-11-19 07:20:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_init_ipmi_data [2022-11-19 07:20:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-19 07:20:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-19 07:20:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:20:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:20:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:20:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:20:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 07:20:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 07:20:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:20:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:20:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:20:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 07:20:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 07:20:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:20:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:20:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure aem_delete [2022-11-19 07:20:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_delete [2022-11-19 07:20:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:20:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 07:20:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 07:20:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file [2022-11-19 07:20:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file [2022-11-19 07:20:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:20:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure aem_idr_get [2022-11-19 07:20:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_idr_get [2022-11-19 07:20:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2022-11-19 07:20:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2022-11-19 07:20:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:20:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:20:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:20:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:20:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:20:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:20:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2022-11-19 07:20:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2022-11-19 07:20:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:20:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:20:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-11-19 07:20:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-11-19 07:20:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_6 [2022-11-19 07:20:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_6 [2022-11-19 07:20:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure aem_send_message [2022-11-19 07:20:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_send_message [2022-11-19 07:20:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-11-19 07:20:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-11-19 07:20:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure aem_register_sensors [2022-11-19 07:20:30,809 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_register_sensors [2022-11-19 07:20:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-19 07:20:30,810 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-19 07:20:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:20:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:20:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure aem_idr_put [2022-11-19 07:20:30,811 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_idr_put [2022-11-19 07:20:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2022-11-19 07:20:30,811 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2022-11-19 07:20:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-19 07:20:30,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-19 07:20:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:20:30,813 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:20:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:20:30,813 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:20:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:20:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2022-11-19 07:20:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2022-11-19 07:20:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:20:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-19 07:20:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-19 07:20:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:20:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:20:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure aem_remove_sensors [2022-11-19 07:20:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_remove_sensors [2022-11-19 07:20:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2022-11-19 07:20:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2022-11-19 07:20:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:20:30,818 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:20:31,348 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:20:31,352 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:20:31,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:20:34,645 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:20:35,000 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:20:35,001 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:20:35,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:20:35 BoogieIcfgContainer [2022-11-19 07:20:35,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:20:35,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:20:35,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:20:35,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:20:35,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:20:28" (1/3) ... [2022-11-19 07:20:35,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5da854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:20:35, skipping insertion in model container [2022-11-19 07:20:35,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:30" (2/3) ... [2022-11-19 07:20:35,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5da854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:20:35, skipping insertion in model container [2022-11-19 07:20:35,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:20:35" (3/3) ... [2022-11-19 07:20:35,019 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-19 07:20:35,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:20:35,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:20:35,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:20:35,124 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;@1a202ab4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:20:35,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:20:35,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 375 states, 236 states have (on average 1.3177966101694916) internal successors, (311), 245 states have internal predecessors, (311), 102 states have call successors, (102), 36 states have call predecessors, (102), 35 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2022-11-19 07:20:35,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-19 07:20:35,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:35,159 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:35,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:35,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:35,166 INFO L85 PathProgramCache]: Analyzing trace with hash 936411505, now seen corresponding path program 1 times [2022-11-19 07:20:35,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:35,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062794094] [2022-11-19 07:20:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:35,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:36,571 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-11-19 07:20:36,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:36,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062794094] [2022-11-19 07:20:36,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062794094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:36,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:20:36,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:20:36,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497003621] [2022-11-19 07:20:36,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:36,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:20:36,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:36,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:20:36,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:20:36,633 INFO L87 Difference]: Start difference. First operand has 375 states, 236 states have (on average 1.3177966101694916) internal successors, (311), 245 states have internal predecessors, (311), 102 states have call successors, (102), 36 states have call predecessors, (102), 35 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 07:20:37,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:37,688 INFO L93 Difference]: Finished difference Result 838 states and 1129 transitions. [2022-11-19 07:20:37,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:20:37,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 222 [2022-11-19 07:20:37,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:37,714 INFO L225 Difference]: With dead ends: 838 [2022-11-19 07:20:37,714 INFO L226 Difference]: Without dead ends: 420 [2022-11-19 07:20:37,725 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 07:20:37,733 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 185 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:37,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 857 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 07:20:37,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-19 07:20:37,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 413. [2022-11-19 07:20:37,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 270 states have (on average 1.2962962962962963) internal successors, (350), 272 states have internal predecessors, (350), 101 states have call successors, (101), 41 states have call predecessors, (101), 41 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2022-11-19 07:20:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 552 transitions. [2022-11-19 07:20:37,842 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 552 transitions. Word has length 222 [2022-11-19 07:20:37,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:37,845 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 552 transitions. [2022-11-19 07:20:37,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 07:20:37,851 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 552 transitions. [2022-11-19 07:20:37,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-19 07:20:37,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:37,870 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:37,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:20:37,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:37,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:37,873 INFO L85 PathProgramCache]: Analyzing trace with hash -639549739, now seen corresponding path program 1 times [2022-11-19 07:20:37,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:37,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765551977] [2022-11-19 07:20:37,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:37,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2022-11-19 07:20:38,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:38,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765551977] [2022-11-19 07:20:38,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765551977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:38,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:20:38,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:20:38,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692571964] [2022-11-19 07:20:38,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:38,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:20:38,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:38,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:20:38,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:20:38,761 INFO L87 Difference]: Start difference. First operand 413 states and 552 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 07:20:39,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:39,539 INFO L93 Difference]: Finished difference Result 793 states and 1061 transitions. [2022-11-19 07:20:39,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:20:39,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 234 [2022-11-19 07:20:39,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:39,549 INFO L225 Difference]: With dead ends: 793 [2022-11-19 07:20:39,555 INFO L226 Difference]: Without dead ends: 414 [2022-11-19 07:20:39,557 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 07:20:39,558 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 0 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:39,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 836 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 07:20:39,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-19 07:20:39,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2022-11-19 07:20:39,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 271 states have (on average 1.2952029520295203) internal successors, (351), 273 states have internal predecessors, (351), 101 states have call successors, (101), 41 states have call predecessors, (101), 41 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2022-11-19 07:20:39,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 553 transitions. [2022-11-19 07:20:39,604 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 553 transitions. Word has length 234 [2022-11-19 07:20:39,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:39,605 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 553 transitions. [2022-11-19 07:20:39,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 07:20:39,607 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 553 transitions. [2022-11-19 07:20:39,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-19 07:20:39,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:39,616 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:39,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:20:39,616 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:39,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:39,619 INFO L85 PathProgramCache]: Analyzing trace with hash -621251251, now seen corresponding path program 1 times [2022-11-19 07:20:39,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:39,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318241515] [2022-11-19 07:20:39,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:39,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:41,324 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2022-11-19 07:20:41,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:41,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318241515] [2022-11-19 07:20:41,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318241515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:41,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:20:41,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:20:41,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838150602] [2022-11-19 07:20:41,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:41,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:20:41,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:41,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:20:41,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:20:41,334 INFO L87 Difference]: Start difference. First operand 414 states and 553 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-19 07:20:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:43,935 INFO L93 Difference]: Finished difference Result 1172 states and 1580 transitions. [2022-11-19 07:20:43,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:20:43,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 235 [2022-11-19 07:20:43,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:43,948 INFO L225 Difference]: With dead ends: 1172 [2022-11-19 07:20:43,948 INFO L226 Difference]: Without dead ends: 1170 [2022-11-19 07:20:43,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:20:43,951 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 1100 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:43,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 1510 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-19 07:20:43,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2022-11-19 07:20:44,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1170. [2022-11-19 07:20:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 774 states have (on average 1.3049095607235142) internal successors, (1010), 780 states have internal predecessors, (1010), 277 states have call successors, (277), 118 states have call predecessors, (277), 118 states have return successors, (291), 277 states have call predecessors, (291), 277 states have call successors, (291) [2022-11-19 07:20:44,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1578 transitions. [2022-11-19 07:20:44,057 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1578 transitions. Word has length 235 [2022-11-19 07:20:44,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:44,059 INFO L495 AbstractCegarLoop]: Abstraction has 1170 states and 1578 transitions. [2022-11-19 07:20:44,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-19 07:20:44,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1578 transitions. [2022-11-19 07:20:44,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-19 07:20:44,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:44,066 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:44,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:20:44,067 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:44,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:44,068 INFO L85 PathProgramCache]: Analyzing trace with hash -180072496, now seen corresponding path program 1 times [2022-11-19 07:20:44,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:44,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828350343] [2022-11-19 07:20:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:44,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:44,804 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-11-19 07:20:44,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:44,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828350343] [2022-11-19 07:20:44,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828350343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:44,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:20:44,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:20:44,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964121611] [2022-11-19 07:20:44,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:44,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:20:44,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:44,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:20:44,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:20:44,808 INFO L87 Difference]: Start difference. First operand 1170 states and 1578 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 07:20:46,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:46,241 INFO L93 Difference]: Finished difference Result 2781 states and 3866 transitions. [2022-11-19 07:20:46,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:20:46,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 250 [2022-11-19 07:20:46,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:46,259 INFO L225 Difference]: With dead ends: 2781 [2022-11-19 07:20:46,259 INFO L226 Difference]: Without dead ends: 1647 [2022-11-19 07:20:46,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:20:46,267 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 139 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:46,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 2093 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 07:20:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-11-19 07:20:46,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1182. [2022-11-19 07:20:46,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 783 states have (on average 1.301404853128991) internal successors, (1019), 789 states have internal predecessors, (1019), 277 states have call successors, (277), 118 states have call predecessors, (277), 121 states have return successors, (297), 280 states have call predecessors, (297), 277 states have call successors, (297) [2022-11-19 07:20:46,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1593 transitions. [2022-11-19 07:20:46,448 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1593 transitions. Word has length 250 [2022-11-19 07:20:46,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:46,449 INFO L495 AbstractCegarLoop]: Abstraction has 1182 states and 1593 transitions. [2022-11-19 07:20:46,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 07:20:46,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1593 transitions. [2022-11-19 07:20:46,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-19 07:20:46,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:46,456 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:46,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:20:46,456 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:46,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:46,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1973357026, now seen corresponding path program 1 times [2022-11-19 07:20:46,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:46,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429719832] [2022-11-19 07:20:46,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:46,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-11-19 07:20:48,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:48,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429719832] [2022-11-19 07:20:48,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429719832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:20:48,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513886592] [2022-11-19 07:20:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:48,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:20:48,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:20:48,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:20:48,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:20:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:49,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 3211 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:20:49,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:20:51,230 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-11-19 07:20:51,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:20:51,995 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-11-19 07:20:51,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513886592] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:20:51,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1337037316] [2022-11-19 07:20:52,038 INFO L159 IcfgInterpreter]: Started Sifa with 158 locations of interest [2022-11-19 07:20:52,038 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:20:52,047 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:20:52,053 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:20:52,054 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:20:54,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:55,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:55,086 INFO L217 Elim1Store]: Index analysis took 212 ms [2022-11-19 07:21:05,329 WARN L233 SmtUtils]: Spent 10.21s on a formula simplification. DAG size of input: 943 DAG size of output: 471 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:21:05,343 INFO L321 Elim1Store]: treesize reduction 2226, result has 25.5 percent of original size [2022-11-19 07:21:05,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 62 select indices, 62 select index equivalence classes, 1774 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 177 case distinctions, treesize of input 324 treesize of output 965 [2022-11-19 07:21:06,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:06,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:06,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 59 select indices, 59 select index equivalence classes, 1832 disjoint index pairs (out of 1711 index pairs), introduced 59 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 483 [2022-11-19 07:21:10,236 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 07:21:10,250 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 07:21:10,264 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 07:21:12,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:12,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:12,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:12,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:12,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:12,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:12,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 126 select indices, 126 select index equivalence classes, 512 disjoint index pairs (out of 7875 index pairs), introduced 126 new quantified variables, introduced 0 case distinctions, treesize of input 993 treesize of output 379 [2022-11-19 07:21:13,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:13,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:13,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1891 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-11-19 07:21:13,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:13,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:13,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 61 select indices, 61 select index equivalence classes, 1832 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 184 [2022-11-19 07:21:18,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:18,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:18,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:18,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:18,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:18,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:18,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 126 select indices, 126 select index equivalence classes, 512 disjoint index pairs (out of 7875 index pairs), introduced 126 new quantified variables, introduced 0 case distinctions, treesize of input 993 treesize of output 379 [2022-11-19 07:21:19,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:19,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:19,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1891 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-11-19 07:21:19,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:19,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:19,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 61 select indices, 61 select index equivalence classes, 1832 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 184 [2022-11-19 07:21:22,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:22,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:23,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:24,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:24,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:24,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:27,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:28,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:28,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:29,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:29,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:29,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:32,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:33,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:33,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:34,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:34,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:35,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:38,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:38,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:38,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:40,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:40,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:40,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:43,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:43,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:43,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:46,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:46,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:46,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:49,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:49,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:50,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:51,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:51,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:51,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:55,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:55,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:21:55,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:57,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:58,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:21:58,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:22:01,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:22:01,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:22:01,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:22:04,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:22:04,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:22:04,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:24:09,293 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 929 for LOIs [2022-11-19 07:24:10,873 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 156 for LOIs [2022-11-19 07:24:11,007 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 07:24:11,030 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 07:24:12,781 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 177 for LOIs [2022-11-19 07:24:12,837 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 184 for LOIs [2022-11-19 07:24:12,993 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:24:46,193 WARN L233 SmtUtils]: Spent 32.96s on a formula simplification. DAG size of input: 1531 DAG size of output: 1319 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:09,543 WARN L233 SmtUtils]: Spent 14.30s on a formula simplification. DAG size of input: 948 DAG size of output: 940 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:24,499 WARN L233 SmtUtils]: Spent 14.54s on a formula simplification. DAG size of input: 952 DAG size of output: 944 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:39,901 WARN L233 SmtUtils]: Spent 14.96s on a formula simplification. DAG size of input: 968 DAG size of output: 956 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:55,392 WARN L233 SmtUtils]: Spent 15.01s on a formula simplification. DAG size of input: 971 DAG size of output: 959 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:26:11,415 WARN L233 SmtUtils]: Spent 15.51s on a formula simplification. DAG size of input: 984 DAG size of output: 968 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:26:27,402 WARN L233 SmtUtils]: Spent 15.44s on a formula simplification. DAG size of input: 988 DAG size of output: 972 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:26:44,069 WARN L233 SmtUtils]: Spent 16.07s on a formula simplification. DAG size of input: 1003 DAG size of output: 983 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:27:00,903 WARN L233 SmtUtils]: Spent 16.20s on a formula simplification. DAG size of input: 1007 DAG size of output: 987 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:27:18,308 WARN L233 SmtUtils]: Spent 16.68s on a formula simplification. DAG size of input: 1023 DAG size of output: 999 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:27:35,943 WARN L233 SmtUtils]: Spent 16.85s on a formula simplification. DAG size of input: 1026 DAG size of output: 1002 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:27:54,138 WARN L233 SmtUtils]: Spent 17.42s on a formula simplification. DAG size of input: 1041 DAG size of output: 1014 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:12,587 WARN L233 SmtUtils]: Spent 17.63s on a formula simplification. DAG size of input: 1045 DAG size of output: 1018 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:31,637 WARN L233 SmtUtils]: Spent 18.20s on a formula simplification. DAG size of input: 1060 DAG size of output: 1029 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:50,975 WARN L233 SmtUtils]: Spent 18.43s on a formula simplification. DAG size of input: 1063 DAG size of output: 1032 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:11,072 WARN L233 SmtUtils]: Spent 19.13s on a formula simplification. DAG size of input: 1077 DAG size of output: 1042 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:31,662 WARN L233 SmtUtils]: Spent 19.55s on a formula simplification. DAG size of input: 1080 DAG size of output: 1045 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:30:04,790 WARN L233 SmtUtils]: Spent 31.86s on a formula simplification. DAG size of input: 1193 DAG size of output: 1069 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:30:38,730 WARN L233 SmtUtils]: Spent 33.26s on a formula simplification. DAG size of input: 1197 DAG size of output: 1099 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:30:49,703 WARN L233 SmtUtils]: Spent 10.38s on a formula simplification. DAG size of input: 929 DAG size of output: 830 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:31:01,349 WARN L233 SmtUtils]: Spent 10.98s on a formula simplification. DAG size of input: 947 DAG size of output: 848 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:31:01,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1337037316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:01,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:31:01,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [8, 8, 7] total 49 [2022-11-19 07:31:01,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980521776] [2022-11-19 07:31:01,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:01,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-19 07:31:01,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:01,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-19 07:31:01,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=2009, Unknown=0, NotChecked=0, Total=2352 [2022-11-19 07:31:01,392 INFO L87 Difference]: Start difference. First operand 1182 states and 1593 transitions. Second operand has 33 states, 18 states have (on average 5.666666666666667) internal successors, (102), 17 states have internal predecessors, (102), 13 states have call successors, (36), 5 states have call predecessors, (36), 4 states have return successors, (35), 12 states have call predecessors, (35), 13 states have call successors, (35) [2022-11-19 07:31:32,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:32:06,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:06,690 INFO L93 Difference]: Finished difference Result 2336 states and 3151 transitions. [2022-11-19 07:32:06,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-19 07:32:06,691 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 18 states have (on average 5.666666666666667) internal successors, (102), 17 states have internal predecessors, (102), 13 states have call successors, (36), 5 states have call predecessors, (36), 4 states have return successors, (35), 12 states have call predecessors, (35), 13 states have call successors, (35) Word has length 264 [2022-11-19 07:32:06,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:06,697 INFO L225 Difference]: With dead ends: 2336 [2022-11-19 07:32:06,697 INFO L226 Difference]: Without dead ends: 1184 [2022-11-19 07:32:06,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 747 SyntacticMatches, 6 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 408.6s TimeCoverageRelationStatistics Valid=343, Invalid=2009, Unknown=0, NotChecked=0, Total=2352 [2022-11-19 07:32:06,701 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 6 mSDsluCounter, 7496 mSDsCounter, 0 mSdLazyCounter, 4525 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7892 SdHoareTripleChecker+Invalid, 5196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 671 IncrementalHoareTripleChecker+Unchecked, 64.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:06,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7892 Invalid, 5196 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4525 Invalid, 0 Unknown, 671 Unchecked, 64.9s Time] [2022-11-19 07:32:06,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-11-19 07:32:06,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1184. [2022-11-19 07:32:06,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 785 states have (on average 1.3006369426751592) internal successors, (1021), 790 states have internal predecessors, (1021), 277 states have call successors, (277), 119 states have call predecessors, (277), 121 states have return successors, (297), 280 states have call predecessors, (297), 277 states have call successors, (297) [2022-11-19 07:32:06,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1595 transitions. [2022-11-19 07:32:06,848 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1595 transitions. Word has length 264 [2022-11-19 07:32:06,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:06,848 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1595 transitions. [2022-11-19 07:32:06,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 18 states have (on average 5.666666666666667) internal successors, (102), 17 states have internal predecessors, (102), 13 states have call successors, (36), 5 states have call predecessors, (36), 4 states have return successors, (35), 12 states have call predecessors, (35), 13 states have call successors, (35) [2022-11-19 07:32:06,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1595 transitions. [2022-11-19 07:32:06,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-11-19 07:32:06,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:06,855 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:06,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:07,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:07,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:07,072 INFO L85 PathProgramCache]: Analyzing trace with hash 195045615, now seen corresponding path program 1 times [2022-11-19 07:32:07,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:07,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451303758] [2022-11-19 07:32:07,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:07,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-19 07:32:07,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:07,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451303758] [2022-11-19 07:32:07,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451303758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:07,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:07,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:32:07,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163230778] [2022-11-19 07:32:07,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:07,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:32:07,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:07,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:32:07,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:07,549 INFO L87 Difference]: Start difference. First operand 1184 states and 1595 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:32:08,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:08,024 INFO L93 Difference]: Finished difference Result 2333 states and 3148 transitions. [2022-11-19 07:32:08,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:32:08,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 260 [2022-11-19 07:32:08,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:08,031 INFO L225 Difference]: With dead ends: 2333 [2022-11-19 07:32:08,031 INFO L226 Difference]: Without dead ends: 1187 [2022-11-19 07:32:08,035 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 07:32:08,036 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 0 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:08,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 835 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:32:08,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2022-11-19 07:32:08,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1187. [2022-11-19 07:32:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 788 states have (on average 1.299492385786802) internal successors, (1024), 793 states have internal predecessors, (1024), 277 states have call successors, (277), 119 states have call predecessors, (277), 121 states have return successors, (297), 280 states have call predecessors, (297), 277 states have call successors, (297) [2022-11-19 07:32:08,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1598 transitions. [2022-11-19 07:32:08,193 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1598 transitions. Word has length 260 [2022-11-19 07:32:08,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:08,193 INFO L495 AbstractCegarLoop]: Abstraction has 1187 states and 1598 transitions. [2022-11-19 07:32:08,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:32:08,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1598 transitions. [2022-11-19 07:32:08,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-19 07:32:08,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:08,203 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:08,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:32:08,203 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:08,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:08,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2027315335, now seen corresponding path program 1 times [2022-11-19 07:32:08,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:08,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688047808] [2022-11-19 07:32:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:08,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:09,444 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-19 07:32:09,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:09,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688047808] [2022-11-19 07:32:09,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688047808] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:32:09,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295316072] [2022-11-19 07:32:09,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:09,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:09,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:09,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:32:09,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0008bd6c-2813-4077-bf2a-9870841915ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:32:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:10,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 3226 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:32:10,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-11-19 07:32:11,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-19 07:32:12,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295316072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:12,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2065087954] [2022-11-19 07:32:12,074 INFO L159 IcfgInterpreter]: Started Sifa with 158 locations of interest [2022-11-19 07:32:12,075 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:32:12,075 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:32:12,076 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:32:12,076 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:32:13,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:13,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:13,217 INFO L217 Elim1Store]: Index analysis took 122 ms [2022-11-19 07:32:21,127 WARN L233 SmtUtils]: Spent 7.90s on a formula simplification. DAG size of input: 943 DAG size of output: 471 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:32:21,128 INFO L321 Elim1Store]: treesize reduction 2226, result has 25.5 percent of original size [2022-11-19 07:32:21,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 62 select indices, 62 select index equivalence classes, 1774 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 177 case distinctions, treesize of input 324 treesize of output 965 [2022-11-19 07:32:21,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:21,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:21,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 59 select indices, 59 select index equivalence classes, 1832 disjoint index pairs (out of 1711 index pairs), introduced 59 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 483 [2022-11-19 07:32:24,870 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 07:32:24,881 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 07:32:24,887 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 07:32:26,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:26,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:26,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:26,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:26,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:26,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:26,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 126 select indices, 126 select index equivalence classes, 512 disjoint index pairs (out of 7875 index pairs), introduced 126 new quantified variables, introduced 0 case distinctions, treesize of input 993 treesize of output 379 [2022-11-19 07:32:26,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:26,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:26,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 61 select indices, 61 select index equivalence classes, 1832 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 184 [2022-11-19 07:32:27,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:27,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:27,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1891 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-11-19 07:32:30,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:30,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:30,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1891 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-11-19 07:32:31,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:31,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:31,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:31,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:31,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:31,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:31,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 126 select indices, 126 select index equivalence classes, 512 disjoint index pairs (out of 7875 index pairs), introduced 126 new quantified variables, introduced 0 case distinctions, treesize of input 993 treesize of output 379 [2022-11-19 07:32:31,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:31,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:32:31,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 61 select indices, 61 select index equivalence classes, 1832 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 184 [2022-11-19 07:32:46,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:32:46,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:32:46,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:32:46,955 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:32:46,992 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:32:46,994 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:32:58,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:32:58,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:32:58,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:32:59,416 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:32:59,424 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:32:59,430 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:33:01,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:02,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:02,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:33:03,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:33:03,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:03,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:05,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:05,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:33:06,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:07,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:07,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:07,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:33:10,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:33:10,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:10,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:11,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:12,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:33:12,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:38,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:38,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:33:38,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:33:39,136 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:33:39,149 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:33:39,159 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:34:05,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-19 07:34:05,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:34:05,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 07:34:06,402 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:34:06,407 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:34:06,414 WARN L207 Elim1Store]: Array PQE input equivalent to false