./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW --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 a6e1397422f061401041ed8290b479ab382edc5aeb84d3f22471688ceb94ba00 --- 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-4e7fbc6 [2022-11-23 14:44:44,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:44:44,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:44:44,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:44:44,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:44:44,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:44:44,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:44:44,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:44:44,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:44:44,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:44:44,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:44:44,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:44:44,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:44:44,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:44:44,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:44:44,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:44:44,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:44:44,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:44:44,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:44:44,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:44:44,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:44:44,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:44:44,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:44:44,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:44:44,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:44:44,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:44:44,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:44:44,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:44:44,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:44:44,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:44:44,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:44:44,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:44:44,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:44:44,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:44:44,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:44:44,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:44:44,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:44:44,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:44:44,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:44:44,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:44:44,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:44:44,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:44:44,229 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:44:44,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:44:44,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:44:44,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:44:44,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:44:44,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:44:44,232 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:44:44,232 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:44:44,232 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:44:44,233 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:44:44,233 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:44:44,233 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:44:44,234 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:44:44,234 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:44:44,234 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:44:44,235 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:44:44,235 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:44:44,235 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:44:44,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:44:44,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:44:44,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:44:44,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:44:44,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:44:44,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:44:44,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:44:44,238 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:44:44,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:44:44,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:44:44,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:44:44,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:44:44,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:44:44,240 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:44:44,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:44:44,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:44:44,241 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:44:44,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:44:44,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:44:44,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:44:44,242 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_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6e1397422f061401041ed8290b479ab382edc5aeb84d3f22471688ceb94ba00 [2022-11-23 14:44:44,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:44:44,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:44:44,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:44:44,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:44:44,533 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:44:44,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2022-11-23 14:44:47,680 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:44:48,398 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:44:48,399 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2022-11-23 14:44:48,469 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/data/aefb8b500/4edf7146757f42e8b035f65b893b9d44/FLAG7bbd58da6 [2022-11-23 14:44:48,491 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/data/aefb8b500/4edf7146757f42e8b035f65b893b9d44 [2022-11-23 14:44:48,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:44:48,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:44:48,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:44:48,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:44:48,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:44:48,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:48,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60235c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48, skipping insertion in model container [2022-11-23 14:44:48,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:48,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:44:48,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:44:53,552 WARN L237 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_13f69f56-de06-48af-a700-e3e03ad80fcc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i[462027,462040] [2022-11-23 14:44:53,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:44:53,900 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:44:54,405 WARN L237 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_13f69f56-de06-48af-a700-e3e03ad80fcc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i[462027,462040] [2022-11-23 14:44:54,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:44:54,622 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:44:54,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54 WrapperNode [2022-11-23 14:44:54,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:44:54,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:44:54,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:44:54,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:44:54,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:54,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:55,132 INFO L138 Inliner]: procedures = 493, calls = 3939, calls flagged for inlining = 198, calls inlined = 173, statements flattened = 8069 [2022-11-23 14:44:55,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:44:55,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:44:55,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:44:55,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:44:55,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:55,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:55,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:55,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:55,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:55,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:55,622 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:55,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:55,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:44:55,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:44:55,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:44:55,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:44:55,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (1/1) ... [2022-11-23 14:44:55,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:44:55,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:55,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:44:55,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:44:55,792 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_radio_disable [2022-11-23 14:44:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_radio_disable [2022-11-23 14:44:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_key [2022-11-23 14:44:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_key [2022-11-23 14:44:55,793 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_use_fixed_rate_ap [2022-11-23 14:44:55,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_use_fixed_rate_ap [2022-11-23 14:44:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 14:44:55,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 14:44:55,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:44:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:44:55,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_fw_mutex_of_mwl8k_priv [2022-11-23 14:44:55,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_fw_mutex_of_mwl8k_priv [2022-11-23 14:44:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_rts_threshold [2022-11-23 14:44:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_rts_threshold [2022-11-23 14:44:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-23 14:44:55,796 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-23 14:44:55,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:44:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:44:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_interface [2022-11-23 14:44:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_interface [2022-11-23 14:44:55,797 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 14:44:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 14:44:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 14:44:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 14:44:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-23 14:44:55,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-23 14:44:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-23 14:44:55,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-23 14:44:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_prepare_multicast [2022-11-23 14:44:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_prepare_multicast [2022-11-23 14:44:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_feed_fw_image [2022-11-23 14:44:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_feed_fw_image [2022-11-23 14:44:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_release_firmware [2022-11-23 14:44:55,802 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_release_firmware [2022-11-23 14:44:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:44:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-23 14:44:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-23 14:44:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_radio_enable [2022-11-23 14:44:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_radio_enable [2022-11-23 14:44:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_mgmt [2022-11-23 14:44:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_mgmt [2022-11-23 14:44:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_ap_process [2022-11-23 14:44:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_ap_process [2022-11-23 14:44:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_fw_unlock [2022-11-23 14:44:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_fw_unlock [2022-11-23 14:44:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_get_stats [2022-11-23 14:44:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_get_stats [2022-11-23 14:44:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-23 14:44:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-23 14:44:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:44:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-23 14:44:55,807 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-23 14:44:55,808 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 14:44:55,808 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 14:44:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_configure_filter [2022-11-23 14:44:55,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_configure_filter [2022-11-23 14:44:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_ht_caps [2022-11-23 14:44:55,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_ht_caps [2022-11-23 14:44:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_start [2022-11-23 14:44:55,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_start [2022-11-23 14:44:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_request_fw [2022-11-23 14:44:55,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_request_fw [2022-11-23 14:44:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 14:44:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 14:44:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-23 14:44:55,811 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-23 14:44:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:44:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 14:44:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 14:44:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2022-11-23 14:44:55,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2022-11-23 14:44:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fw_mutex_of_mwl8k_priv [2022-11-23 14:44:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fw_mutex_of_mwl8k_priv [2022-11-23 14:44:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:44:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_load_firmware [2022-11-23 14:44:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_load_firmware [2022-11-23 14:44:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_watchdog_ba_events [2022-11-23 14:44:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_watchdog_ba_events [2022-11-23 14:44:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2022-11-23 14:44:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2022-11-23 14:44:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:44:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 14:44:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 14:44:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_probe_hw [2022-11-23 14:44:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_probe_hw [2022-11-23 14:44:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_PERM_ADDR [2022-11-23 14:44:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_PERM_ADDR [2022-11-23 14:44:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:44:55,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:44:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_name [2022-11-23 14:44:55,818 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_name [2022-11-23 14:44:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_tx [2022-11-23 14:44:55,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_tx [2022-11-23 14:44:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-23 14:44:55,820 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-23 14:44:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-23 14:44:55,820 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-23 14:44:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-23 14:44:55,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-23 14:44:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sw_scan_start [2022-11-23 14:44:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sw_scan_start [2022-11-23 14:44:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 14:44:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 14:44:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 14:44:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 14:44:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_ap_refill [2022-11-23 14:44:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_ap_refill [2022-11-23 14:44:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_caps [2022-11-23 14:44:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_caps [2022-11-23 14:44:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-23 14:44:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-23 14:44:55,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 14:44:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 14:44:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_wmm_mode [2022-11-23 14:44:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_wmm_mode [2022-11-23 14:44:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:44:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_get_survey [2022-11-23 14:44:55,832 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_get_survey [2022-11-23 14:44:55,832 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-23 14:44:55,832 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-23 14:44:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:44:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-23 14:44:55,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-23 14:44:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:44:55,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:44:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:44:55,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:44:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:44:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:44:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_add_stream [2022-11-23 14:44:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_add_stream [2022-11-23 14:44:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_sta_init [2022-11-23 14:44:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_sta_init [2022-11-23 14:44:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2022-11-23 14:44:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2022-11-23 14:44:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-23 14:44:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-23 14:44:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_radio_control [2022-11-23 14:44:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_radio_control [2022-11-23 14:44:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:44:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:44:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_work [2022-11-23 14:44:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_work [2022-11-23 14:44:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_pervif_cmd [2022-11-23 14:44:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_pervif_cmd [2022-11-23 14:44:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:44:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:44:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_wake_queues [2022-11-23 14:44:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_wake_queues [2022-11-23 14:44:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-23 14:44:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-23 14:44:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 14:44:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 14:44:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_hw_reset [2022-11-23 14:44:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_hw_reset [2022-11-23 14:44:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bss_start [2022-11-23 14:44:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bss_start [2022-11-23 14:44:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:44:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:44:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2022-11-23 14:44:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2022-11-23 14:44:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:44:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:44:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_enable_bsses [2022-11-23 14:44:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_enable_bsses [2022-11-23 14:44:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_interrupt [2022-11-23 14:44:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_interrupt [2022-11-23 14:44:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-23 14:44:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-23 14:44:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 14:44:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 14:44:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-23 14:44:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-23 14:44:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_conf_tx [2022-11-23 14:44:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_conf_tx [2022-11-23 14:44:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_pre_scan [2022-11-23 14:44:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_pre_scan [2022-11-23 14:44:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data [2022-11-23 14:44:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data [2022-11-23 14:44:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_post_scan [2022-11-23 14:44:55,851 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_post_scan [2022-11-23 14:44:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_load_fw_image [2022-11-23 14:44:55,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_load_fw_image [2022-11-23 14:44:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_init_txqs [2022-11-23 14:44:55,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_init_txqs [2022-11-23 14:44:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_vif [2022-11-23 14:44:55,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_vif [2022-11-23 14:44:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 14:44:55,853 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 14:44:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_hw_restart_work [2022-11-23 14:44:55,853 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_hw_restart_work [2022-11-23 14:44:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2022-11-23 14:44:55,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2022-11-23 14:44:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2022-11-23 14:44:55,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2022-11-23 14:44:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 14:44:55,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 14:44:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-23 14:44:55,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-23 14:44:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_hdrlen [2022-11-23 14:44:55,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_hdrlen [2022-11-23 14:44:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_init_firmware [2022-11-23 14:44:55,855 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_init_firmware [2022-11-23 14:44:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 14:44:55,856 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 14:44:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_enable_sniffer [2022-11-23 14:44:55,856 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_enable_sniffer [2022-11-23 14:44:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:44:55,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:44:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-23 14:44:55,857 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-23 14:44:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-23 14:44:55,857 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-23 14:44:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bbp_reg_access [2022-11-23 14:44:55,857 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bbp_reg_access [2022-11-23 14:44:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:44:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:44:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-23 14:44:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-23 14:44:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_rf_antenna [2022-11-23 14:44:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_rf_antenna [2022-11-23 14:44:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-23 14:44:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-23 14:44:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_reload_firmware [2022-11-23 14:44:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_reload_firmware [2022-11-23 14:44:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 14:44:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 14:44:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-23 14:44:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-23 14:44:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:44:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_channel_to_frequency [2022-11-23 14:44:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_channel_to_frequency [2022-11-23 14:44:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:44:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_add_dma_header [2022-11-23 14:44:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_add_dma_header [2022-11-23 14:44:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_bss_info_changed [2022-11-23 14:44:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_bss_info_changed [2022-11-23 14:44:55,863 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_stream [2022-11-23 14:44:55,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_stream [2022-11-23 14:44:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sw_scan_complete [2022-11-23 14:44:55,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sw_scan_complete [2022-11-23 14:44:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_txq_reclaim [2022-11-23 14:44:55,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_txq_reclaim [2022-11-23 14:44:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_radio_preamble [2022-11-23 14:44:55,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_radio_preamble [2022-11-23 14:44:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_config [2022-11-23 14:44:55,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_config [2022-11-23 14:44:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:44:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-23 14:44:55,871 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-23 14:44:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-23 14:44:55,871 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-23 14:44:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 14:44:55,871 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 14:44:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-23 14:44:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-23 14:44:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2022-11-23 14:44:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2022-11-23 14:44:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_txq_deinit [2022-11-23 14:44:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_txq_deinit [2022-11-23 14:44:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure rxq_refill [2022-11-23 14:44:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure rxq_refill [2022-11-23 14:44:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_sta_process [2022-11-23 14:44:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_sta_process [2022-11-23 14:44:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_fw_lock [2022-11-23 14:44:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_fw_lock [2022-11-23 14:44:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure __mwl8k_cmd_mac_multicast_adr [2022-11-23 14:44:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __mwl8k_cmd_mac_multicast_adr [2022-11-23 14:44:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_ap_init [2022-11-23 14:44:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_ap_init [2022-11-23 14:44:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 14:44:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 14:44:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-23 14:44:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-23 14:44:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_destroy_ba [2022-11-23 14:44:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_destroy_ba [2022-11-23 14:44:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-11-23 14:44:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-11-23 14:44:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-23 14:44:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-23 14:44:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sta_remove [2022-11-23 14:44:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sta_remove [2022-11-23 14:44:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_tx_start [2022-11-23 14:44:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_tx_start [2022-11-23 14:44:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_dma_header [2022-11-23 14:44:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_dma_header [2022-11-23 14:44:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_stop [2022-11-23 14:44:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_stop [2022-11-23 14:44:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_update_mac_addr [2022-11-23 14:44:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_update_mac_addr [2022-11-23 14:44:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:44:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:44:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_finalize_join_worker [2022-11-23 14:44:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_finalize_join_worker [2022-11-23 14:44:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-23 14:44:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-23 14:44:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:44:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-11-23 14:44:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-11-23 14:44:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:44:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:44:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure __ilog2_u32 [2022-11-23 14:44:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __ilog2_u32 [2022-11-23 14:44:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 14:44:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 14:44:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_queues [2022-11-23 14:44:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_queues [2022-11-23 14:44:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_encryption_set_cmd_info [2022-11-23 14:44:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_encryption_set_cmd_info [2022-11-23 14:44:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-23 14:44:55,881 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-23 14:44:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sta_add [2022-11-23 14:44:55,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sta_add [2022-11-23 14:44:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-23 14:44:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-23 14:44:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-23 14:44:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-23 14:44:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_mac_addr [2022-11-23 14:44:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_mac_addr [2022-11-23 14:44:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_add_interface [2022-11-23 14:44:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_add_interface [2022-11-23 14:44:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-23 14:44:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-23 14:44:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-23 14:44:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-23 14:44:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure legacy_rate_mask_to_array [2022-11-23 14:44:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure legacy_rate_mask_to_array [2022-11-23 14:44:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_ampdu_action [2022-11-23 14:44:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_ampdu_action [2022-11-23 14:44:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_sta_refill [2022-11-23 14:44:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_sta_refill [2022-11-23 14:44:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2022-11-23 14:44:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2022-11-23 14:44:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-23 14:44:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-23 14:44:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-23 14:44:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-23 14:44:55,885 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_release_fw [2022-11-23 14:44:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_release_fw [2022-11-23 14:44:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxq_deinit [2022-11-23 14:44:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxq_deinit [2022-11-23 14:44:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 14:44:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 14:44:55,886 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-23 14:44:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-23 14:44:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_send_fw_load_cmd [2022-11-23 14:44:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_send_fw_load_cmd [2022-11-23 14:44:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-23 14:44:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-23 14:44:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:44:55,887 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_new_stn_del [2022-11-23 14:44:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_new_stn_del [2022-11-23 14:44:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_cmd [2022-11-23 14:44:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_cmd [2022-11-23 14:44:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_lookup_stream [2022-11-23 14:44:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_lookup_stream [2022-11-23 14:44:55,888 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-23 14:44:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-23 14:44:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-11-23 14:44:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-11-23 14:44:57,322 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:44:57,327 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:45:02,371 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:45:16,861 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:45:20,247 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:45:20,247 INFO L300 CfgBuilder]: Removed 32 assume(true) statements. [2022-11-23 14:45:20,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:20 BoogieIcfgContainer [2022-11-23 14:45:20,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:45:20,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:45:20,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:45:20,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:45:20,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:44:48" (1/3) ... [2022-11-23 14:45:20,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f10103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:20, skipping insertion in model container [2022-11-23 14:45:20,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:54" (2/3) ... [2022-11-23 14:45:20,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f10103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:20, skipping insertion in model container [2022-11-23 14:45:20,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:20" (3/3) ... [2022-11-23 14:45:20,271 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2022-11-23 14:45:20,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:45:20,292 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:45:20,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:45:20,422 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;@4738346b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:45:20,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:45:20,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 2581 states, 1644 states have (on average 1.3746958637469586) internal successors, (2260), 1722 states have internal predecessors, (2260), 765 states have call successors, (765), 171 states have call predecessors, (765), 170 states have return successors, (752), 742 states have call predecessors, (752), 752 states have call successors, (752) [2022-11-23 14:45:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2022-11-23 14:45:20,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:20,496 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:20,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:45:20,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:20,502 INFO L85 PathProgramCache]: Analyzing trace with hash 539414376, now seen corresponding path program 1 times [2022-11-23 14:45:20,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:45:20,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215197852] [2022-11-23 14:45:20,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:20,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:45:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:22,751 INFO L134 CoverageAnalysis]: Checked inductivity of 7982 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7982 trivial. 0 not checked. [2022-11-23 14:45:22,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:45:22,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215197852] [2022-11-23 14:45:22,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215197852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:22,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:22,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:45:22,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382712119] [2022-11-23 14:45:22,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:22,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:45:22,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:45:22,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:45:22,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:45:22,836 INFO L87 Difference]: Start difference. First operand has 2581 states, 1644 states have (on average 1.3746958637469586) internal successors, (2260), 1722 states have internal predecessors, (2260), 765 states have call successors, (765), 171 states have call predecessors, (765), 170 states have return successors, (752), 742 states have call predecessors, (752), 752 states have call successors, (752) Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2022-11-23 14:45:24,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:45:27,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:45:35,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:35,407 INFO L93 Difference]: Finished difference Result 7444 states and 11200 transitions. [2022-11-23 14:45:35,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:45:35,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 627 [2022-11-23 14:45:35,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:35,468 INFO L225 Difference]: With dead ends: 7444 [2022-11-23 14:45:35,469 INFO L226 Difference]: Without dead ends: 4924 [2022-11-23 14:45:35,497 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 [2022-11-23 14:45:35,501 INFO L413 NwaCegarLoop]: 4376 mSDtfsCounter, 3482 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3491 SdHoareTripleChecker+Valid, 7842 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:35,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3491 Valid, 7842 Invalid, 638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 633 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2022-11-23 14:45:35,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4924 states. [2022-11-23 14:45:35,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4924 to 4919. [2022-11-23 14:45:35,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4919 states, 3160 states have (on average 1.3664556962025316) internal successors, (4318), 3280 states have internal predecessors, (4318), 1421 states have call successors, (1421), 338 states have call predecessors, (1421), 337 states have return successors, (1424), 1394 states have call predecessors, (1424), 1415 states have call successors, (1424) [2022-11-23 14:45:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4919 states to 4919 states and 7163 transitions. [2022-11-23 14:45:35,987 INFO L78 Accepts]: Start accepts. Automaton has 4919 states and 7163 transitions. Word has length 627 [2022-11-23 14:45:35,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:35,998 INFO L495 AbstractCegarLoop]: Abstraction has 4919 states and 7163 transitions. [2022-11-23 14:45:35,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2022-11-23 14:45:35,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4919 states and 7163 transitions. [2022-11-23 14:45:36,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-11-23 14:45:36,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:36,024 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:36,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:45:36,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:45:36,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:36,026 INFO L85 PathProgramCache]: Analyzing trace with hash 118192521, now seen corresponding path program 1 times [2022-11-23 14:45:36,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:45:36,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846427951] [2022-11-23 14:45:36,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:36,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:45:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 7982 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7982 trivial. 0 not checked. [2022-11-23 14:45:37,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:45:37,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846427951] [2022-11-23 14:45:37,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846427951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:37,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:37,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:45:37,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979676476] [2022-11-23 14:45:37,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:37,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:45:37,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:45:37,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:45:37,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:45:37,131 INFO L87 Difference]: Start difference. First operand 4919 states and 7163 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:45:39,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:45:42,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:45:45,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:45:49,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:49,988 INFO L93 Difference]: Finished difference Result 12900 states and 18652 transitions. [2022-11-23 14:45:49,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:45:49,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 632 [2022-11-23 14:45:49,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:50,051 INFO L225 Difference]: With dead ends: 12900 [2022-11-23 14:45:50,052 INFO L226 Difference]: Without dead ends: 8096 [2022-11-23 14:45:50,083 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 [2022-11-23 14:45:50,084 INFO L413 NwaCegarLoop]: 4451 mSDtfsCounter, 2249 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2255 SdHoareTripleChecker+Valid, 7762 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:50,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2255 Valid, 7762 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 794 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2022-11-23 14:45:50,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-11-23 14:45:50,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 8082. [2022-11-23 14:45:50,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8082 states, 5210 states have (on average 1.36468330134357) internal successors, (7110), 5396 states have internal predecessors, (7110), 2258 states have call successors, (2258), 614 states have call predecessors, (2258), 613 states have return successors, (2273), 2223 states have call predecessors, (2273), 2252 states have call successors, (2273) [2022-11-23 14:45:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8082 states to 8082 states and 11641 transitions. [2022-11-23 14:45:50,662 INFO L78 Accepts]: Start accepts. Automaton has 8082 states and 11641 transitions. Word has length 632 [2022-11-23 14:45:50,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:50,666 INFO L495 AbstractCegarLoop]: Abstraction has 8082 states and 11641 transitions. [2022-11-23 14:45:50,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:45:50,667 INFO L276 IsEmpty]: Start isEmpty. Operand 8082 states and 11641 transitions. [2022-11-23 14:45:50,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2022-11-23 14:45:50,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:50,686 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:50,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:45:50,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:45:50,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1721029274, now seen corresponding path program 1 times [2022-11-23 14:45:50,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:45:50,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672295118] [2022-11-23 14:45:50,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:50,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:45:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:53,087 INFO L134 CoverageAnalysis]: Checked inductivity of 7982 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7982 trivial. 0 not checked. [2022-11-23 14:45:53,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:45:53,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672295118] [2022-11-23 14:45:53,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672295118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:53,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:53,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:45:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261258291] [2022-11-23 14:45:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:53,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:45:53,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:45:53,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:45:53,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:45:53,101 INFO L87 Difference]: Start difference. First operand 8082 states and 11641 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:45:55,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:45:57,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:00,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:03,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:08,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:08,444 INFO L93 Difference]: Finished difference Result 23878 states and 36178 transitions. [2022-11-23 14:46:08,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:46:08,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 636 [2022-11-23 14:46:08,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:08,571 INFO L225 Difference]: With dead ends: 23878 [2022-11-23 14:46:08,572 INFO L226 Difference]: Without dead ends: 15911 [2022-11-23 14:46:08,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:46:08,634 INFO L413 NwaCegarLoop]: 4378 mSDtfsCounter, 3646 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 7750 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:08,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 7750 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 617 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2022-11-23 14:46:08,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15911 states. [2022-11-23 14:46:09,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15911 to 15896. [2022-11-23 14:46:09,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15896 states, 10279 states have (on average 1.3669617667088239) internal successors, (14051), 10641 states have internal predecessors, (14051), 4411 states have call successors, (4411), 1211 states have call predecessors, (4411), 1205 states have return successors, (5360), 4342 states have call predecessors, (5360), 4404 states have call successors, (5360) [2022-11-23 14:46:09,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15896 states to 15896 states and 23822 transitions. [2022-11-23 14:46:09,607 INFO L78 Accepts]: Start accepts. Automaton has 15896 states and 23822 transitions. Word has length 636 [2022-11-23 14:46:09,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:09,608 INFO L495 AbstractCegarLoop]: Abstraction has 15896 states and 23822 transitions. [2022-11-23 14:46:09,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:46:09,609 INFO L276 IsEmpty]: Start isEmpty. Operand 15896 states and 23822 transitions. [2022-11-23 14:46:09,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2022-11-23 14:46:09,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:09,617 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:09,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:46:09,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:46:09,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:09,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1564636733, now seen corresponding path program 1 times [2022-11-23 14:46:09,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:09,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776953133] [2022-11-23 14:46:09,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:09,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:10,817 INFO L134 CoverageAnalysis]: Checked inductivity of 8362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8362 trivial. 0 not checked. [2022-11-23 14:46:10,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:46:10,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776953133] [2022-11-23 14:46:10,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776953133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:10,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:10,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:46:10,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924611197] [2022-11-23 14:46:10,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:10,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:46:10,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:46:10,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:46:10,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:46:10,821 INFO L87 Difference]: Start difference. First operand 15896 states and 23822 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:46:12,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:15,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:16,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:19,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:19,902 INFO L93 Difference]: Finished difference Result 15944 states and 23873 transitions. [2022-11-23 14:46:19,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:46:19,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 642 [2022-11-23 14:46:19,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:19,983 INFO L225 Difference]: With dead ends: 15944 [2022-11-23 14:46:19,983 INFO L226 Difference]: Without dead ends: 15941 [2022-11-23 14:46:19,990 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 [2022-11-23 14:46:19,991 INFO L413 NwaCegarLoop]: 3426 mSDtfsCounter, 3498 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3507 SdHoareTripleChecker+Valid, 3521 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:19,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3507 Valid, 3521 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-23 14:46:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15941 states. [2022-11-23 14:46:20,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15941 to 15938. [2022-11-23 14:46:20,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15938 states, 10302 states have (on average 1.3661424966026015) internal successors, (14074), 10665 states have internal predecessors, (14074), 4413 states have call successors, (4413), 1226 states have call predecessors, (4413), 1222 states have return successors, (5381), 4345 states have call predecessors, (5381), 4407 states have call successors, (5381) [2022-11-23 14:46:20,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15938 states to 15938 states and 23868 transitions. [2022-11-23 14:46:20,968 INFO L78 Accepts]: Start accepts. Automaton has 15938 states and 23868 transitions. Word has length 642 [2022-11-23 14:46:20,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:20,970 INFO L495 AbstractCegarLoop]: Abstraction has 15938 states and 23868 transitions. [2022-11-23 14:46:20,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:46:20,970 INFO L276 IsEmpty]: Start isEmpty. Operand 15938 states and 23868 transitions. [2022-11-23 14:46:20,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2022-11-23 14:46:20,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:20,978 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:20,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:46:20,979 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:46:20,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:20,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1260363128, now seen corresponding path program 1 times [2022-11-23 14:46:20,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:20,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851685921] [2022-11-23 14:46:20,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:20,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:22,064 INFO L134 CoverageAnalysis]: Checked inductivity of 8362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8362 trivial. 0 not checked. [2022-11-23 14:46:22,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:46:22,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851685921] [2022-11-23 14:46:22,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851685921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:22,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:22,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:46:22,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280176904] [2022-11-23 14:46:22,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:22,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:46:22,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:46:22,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:46:22,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:46:22,071 INFO L87 Difference]: Start difference. First operand 15938 states and 23868 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:46:24,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:26,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:28,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:30,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:33,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:33,315 INFO L93 Difference]: Finished difference Result 17179 states and 25693 transitions. [2022-11-23 14:46:33,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:46:33,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 643 [2022-11-23 14:46:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:33,410 INFO L225 Difference]: With dead ends: 17179 [2022-11-23 14:46:33,410 INFO L226 Difference]: Without dead ends: 17176 [2022-11-23 14:46:33,423 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 [2022-11-23 14:46:33,424 INFO L413 NwaCegarLoop]: 3542 mSDtfsCounter, 3488 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3499 SdHoareTripleChecker+Valid, 4039 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:33,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3499 Valid, 4039 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-11-23 14:46:33,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17176 states. [2022-11-23 14:46:34,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17176 to 17159. [2022-11-23 14:46:34,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17159 states, 11158 states have (on average 1.3755153253271195) internal successors, (15348), 11533 states have internal predecessors, (15348), 4649 states have call successors, (4649), 1357 states have call predecessors, (4649), 1351 states have return successors, (5664), 4577 states have call predecessors, (5664), 4644 states have call successors, (5664) [2022-11-23 14:46:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17159 states to 17159 states and 25661 transitions. [2022-11-23 14:46:34,689 INFO L78 Accepts]: Start accepts. Automaton has 17159 states and 25661 transitions. Word has length 643 [2022-11-23 14:46:34,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:34,690 INFO L495 AbstractCegarLoop]: Abstraction has 17159 states and 25661 transitions. [2022-11-23 14:46:34,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:46:34,691 INFO L276 IsEmpty]: Start isEmpty. Operand 17159 states and 25661 transitions. [2022-11-23 14:46:34,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2022-11-23 14:46:34,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:34,699 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:34,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:46:34,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:46:34,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:34,700 INFO L85 PathProgramCache]: Analyzing trace with hash -417811098, now seen corresponding path program 1 times [2022-11-23 14:46:34,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:34,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408909675] [2022-11-23 14:46:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:34,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 8362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8362 trivial. 0 not checked. [2022-11-23 14:46:35,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:46:35,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408909675] [2022-11-23 14:46:35,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408909675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:35,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:35,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:46:35,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435577897] [2022-11-23 14:46:35,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:35,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:46:35,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:46:35,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:46:35,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:46:35,744 INFO L87 Difference]: Start difference. First operand 17159 states and 25661 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:46:38,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:41,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:43,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:44,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:44,642 INFO L93 Difference]: Finished difference Result 17174 states and 25686 transitions. [2022-11-23 14:46:44,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:46:44,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 644 [2022-11-23 14:46:44,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:44,742 INFO L225 Difference]: With dead ends: 17174 [2022-11-23 14:46:44,742 INFO L226 Difference]: Without dead ends: 17166 [2022-11-23 14:46:44,756 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 [2022-11-23 14:46:44,757 INFO L413 NwaCegarLoop]: 3541 mSDtfsCounter, 3485 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3496 SdHoareTripleChecker+Valid, 4038 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:44,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3496 Valid, 4038 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-11-23 14:46:44,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17166 states. [2022-11-23 14:46:45,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17166 to 17153. [2022-11-23 14:46:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17153 states, 11153 states have (on average 1.3752353626826863) internal successors, (15338), 11527 states have internal predecessors, (15338), 4648 states have call successors, (4648), 1357 states have call predecessors, (4648), 1351 states have return successors, (5664), 4577 states have call predecessors, (5664), 4644 states have call successors, (5664) [2022-11-23 14:46:46,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17153 states to 17153 states and 25650 transitions. [2022-11-23 14:46:46,071 INFO L78 Accepts]: Start accepts. Automaton has 17153 states and 25650 transitions. Word has length 644 [2022-11-23 14:46:46,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:46,072 INFO L495 AbstractCegarLoop]: Abstraction has 17153 states and 25650 transitions. [2022-11-23 14:46:46,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:46:46,072 INFO L276 IsEmpty]: Start isEmpty. Operand 17153 states and 25650 transitions. [2022-11-23 14:46:46,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2022-11-23 14:46:46,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:46,084 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 17, 17, 17, 17, 17, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:46,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:46:46,085 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:46:46,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:46,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1811894560, now seen corresponding path program 1 times [2022-11-23 14:46:46,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:46,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847216501] [2022-11-23 14:46:46,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:46,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 7988 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7988 trivial. 0 not checked. [2022-11-23 14:46:47,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:46:47,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847216501] [2022-11-23 14:46:47,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847216501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:47,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:47,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:46:47,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898079235] [2022-11-23 14:46:47,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:47,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:46:47,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:46:47,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:46:47,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:46:47,672 INFO L87 Difference]: Start difference. First operand 17153 states and 25650 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (69), 3 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-23 14:46:49,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:52,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:56,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:46:59,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:05,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:05,836 INFO L93 Difference]: Finished difference Result 34193 states and 52763 transitions. [2022-11-23 14:47:05,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:05,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (69), 3 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 671 [2022-11-23 14:47:05,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:05,939 INFO L225 Difference]: With dead ends: 34193 [2022-11-23 14:47:05,939 INFO L226 Difference]: Without dead ends: 17155 [2022-11-23 14:47:06,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:06,063 INFO L413 NwaCegarLoop]: 6625 mSDtfsCounter, 3645 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3645 SdHoareTripleChecker+Valid, 10085 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:06,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3645 Valid, 10085 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 844 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2022-11-23 14:47:06,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17155 states. [2022-11-23 14:47:07,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17155 to 17138. [2022-11-23 14:47:07,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17138 states, 11143 states have (on average 1.3740464865835054) internal successors, (15311), 11517 states have internal predecessors, (15311), 4643 states have call successors, (4643), 1352 states have call predecessors, (4643), 1351 states have return successors, (5554), 4577 states have call predecessors, (5554), 4638 states have call successors, (5554) [2022-11-23 14:47:07,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17138 states to 17138 states and 25508 transitions. [2022-11-23 14:47:07,338 INFO L78 Accepts]: Start accepts. Automaton has 17138 states and 25508 transitions. Word has length 671 [2022-11-23 14:47:07,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:07,339 INFO L495 AbstractCegarLoop]: Abstraction has 17138 states and 25508 transitions. [2022-11-23 14:47:07,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (69), 3 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-23 14:47:07,340 INFO L276 IsEmpty]: Start isEmpty. Operand 17138 states and 25508 transitions. [2022-11-23 14:47:07,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2022-11-23 14:47:07,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:07,351 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:07,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:47:07,352 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:47:07,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:07,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1962891804, now seen corresponding path program 1 times [2022-11-23 14:47:07,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:07,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141864903] [2022-11-23 14:47:07,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:07,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 7982 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7982 trivial. 0 not checked. [2022-11-23 14:47:09,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:09,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141864903] [2022-11-23 14:47:09,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141864903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:09,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:09,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:47:09,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108676831] [2022-11-23 14:47:09,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:09,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:47:09,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:09,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:47:09,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:09,258 INFO L87 Difference]: Start difference. First operand 17138 states and 25508 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-23 14:47:11,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:13,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:15,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:18,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:20,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:20,384 INFO L93 Difference]: Finished difference Result 34190 states and 50850 transitions. [2022-11-23 14:47:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:20,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 678 [2022-11-23 14:47:20,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:20,486 INFO L225 Difference]: With dead ends: 34190 [2022-11-23 14:47:20,487 INFO L226 Difference]: Without dead ends: 17167 [2022-11-23 14:47:20,576 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 [2022-11-23 14:47:20,577 INFO L413 NwaCegarLoop]: 3420 mSDtfsCounter, 3432 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3442 SdHoareTripleChecker+Valid, 3689 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:20,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 3689 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-11-23 14:47:20,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17167 states. [2022-11-23 14:47:21,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17167 to 17151. [2022-11-23 14:47:21,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17151 states, 11150 states have (on average 1.373183856502242) internal successors, (15311), 11524 states have internal predecessors, (15311), 4637 states have call successors, (4637), 1364 states have call predecessors, (4637), 1363 states have return successors, (5540), 4571 states have call predecessors, (5540), 4632 states have call successors, (5540) [2022-11-23 14:47:21,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17151 states to 17151 states and 25488 transitions. [2022-11-23 14:47:21,962 INFO L78 Accepts]: Start accepts. Automaton has 17151 states and 25488 transitions. Word has length 678 [2022-11-23 14:47:21,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:21,963 INFO L495 AbstractCegarLoop]: Abstraction has 17151 states and 25488 transitions. [2022-11-23 14:47:21,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-23 14:47:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 17151 states and 25488 transitions. [2022-11-23 14:47:21,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2022-11-23 14:47:21,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:21,975 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:21,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:47:21,975 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:47:21,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:21,976 INFO L85 PathProgramCache]: Analyzing trace with hash 547423223, now seen corresponding path program 1 times [2022-11-23 14:47:21,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:21,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650605932] [2022-11-23 14:47:21,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:21,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:23,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7982 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7982 trivial. 0 not checked. [2022-11-23 14:47:23,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:23,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650605932] [2022-11-23 14:47:23,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650605932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:23,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:23,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:47:23,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244092330] [2022-11-23 14:47:23,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:23,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:47:23,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:23,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:47:23,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:23,514 INFO L87 Difference]: Start difference. First operand 17151 states and 25488 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-23 14:47:25,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:27,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:29,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:32,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:32,614 INFO L93 Difference]: Finished difference Result 34158 states and 50762 transitions. [2022-11-23 14:47:32,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:32,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 679 [2022-11-23 14:47:32,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:32,705 INFO L225 Difference]: With dead ends: 34158 [2022-11-23 14:47:32,705 INFO L226 Difference]: Without dead ends: 17135 [2022-11-23 14:47:32,792 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 [2022-11-23 14:47:32,793 INFO L413 NwaCegarLoop]: 3416 mSDtfsCounter, 3431 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3440 SdHoareTripleChecker+Valid, 3682 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:32,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3440 Valid, 3682 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-11-23 14:47:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17135 states. [2022-11-23 14:47:34,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17135 to 17135. [2022-11-23 14:47:34,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17135 states, 11142 states have (on average 1.3727338000359002) internal successors, (15295), 11516 states have internal predecessors, (15295), 4629 states have call successors, (4629), 1364 states have call predecessors, (4629), 1363 states have return successors, (5524), 4563 states have call predecessors, (5524), 4624 states have call successors, (5524) [2022-11-23 14:47:34,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17135 states to 17135 states and 25448 transitions. [2022-11-23 14:47:34,133 INFO L78 Accepts]: Start accepts. Automaton has 17135 states and 25448 transitions. Word has length 679 [2022-11-23 14:47:34,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:34,134 INFO L495 AbstractCegarLoop]: Abstraction has 17135 states and 25448 transitions. [2022-11-23 14:47:34,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-23 14:47:34,134 INFO L276 IsEmpty]: Start isEmpty. Operand 17135 states and 25448 transitions. [2022-11-23 14:47:34,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2022-11-23 14:47:34,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:34,146 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:34,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:47:34,147 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:47:34,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:34,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1996644795, now seen corresponding path program 1 times [2022-11-23 14:47:34,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:34,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426001108] [2022-11-23 14:47:34,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:34,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:35,600 INFO L134 CoverageAnalysis]: Checked inductivity of 7982 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7982 trivial. 0 not checked. [2022-11-23 14:47:35,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:35,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426001108] [2022-11-23 14:47:35,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426001108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:35,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:35,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:47:35,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090901526] [2022-11-23 14:47:35,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:35,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:47:35,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:35,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:47:35,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:35,604 INFO L87 Difference]: Start difference. First operand 17135 states and 25448 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-23 14:47:37,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:39,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:44,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:45,807 INFO L93 Difference]: Finished difference Result 34246 states and 50790 transitions. [2022-11-23 14:47:45,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:45,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 680 [2022-11-23 14:47:45,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:45,881 INFO L225 Difference]: With dead ends: 34246 [2022-11-23 14:47:45,881 INFO L226 Difference]: Without dead ends: 17239 [2022-11-23 14:47:45,951 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 [2022-11-23 14:47:45,952 INFO L413 NwaCegarLoop]: 3405 mSDtfsCounter, 3565 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3576 SdHoareTripleChecker+Valid, 3530 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:45,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3576 Valid, 3530 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 331 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-11-23 14:47:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17239 states. [2022-11-23 14:47:47,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17239 to 17227. [2022-11-23 14:47:47,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17227 states, 11190 states have (on average 1.3707774798927614) internal successors, (15339), 11564 states have internal predecessors, (15339), 4637 states have call successors, (4637), 1400 states have call predecessors, (4637), 1399 states have return successors, (5524), 4571 states have call predecessors, (5524), 4632 states have call successors, (5524) [2022-11-23 14:47:47,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17227 states to 17227 states and 25500 transitions. [2022-11-23 14:47:47,100 INFO L78 Accepts]: Start accepts. Automaton has 17227 states and 25500 transitions. Word has length 680 [2022-11-23 14:47:47,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:47,101 INFO L495 AbstractCegarLoop]: Abstraction has 17227 states and 25500 transitions. [2022-11-23 14:47:47,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-23 14:47:47,101 INFO L276 IsEmpty]: Start isEmpty. Operand 17227 states and 25500 transitions. [2022-11-23 14:47:47,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2022-11-23 14:47:47,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:47,115 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:47,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:47:47,116 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:47:47,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:47,116 INFO L85 PathProgramCache]: Analyzing trace with hash -872589696, now seen corresponding path program 1 times [2022-11-23 14:47:47,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:47,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211038580] [2022-11-23 14:47:47,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:47,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 7982 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7982 trivial. 0 not checked. [2022-11-23 14:47:48,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:48,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211038580] [2022-11-23 14:47:48,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211038580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:48,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:48,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:47:48,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923297772] [2022-11-23 14:47:48,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:48,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:47:48,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:48,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:47:48,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:48,548 INFO L87 Difference]: Start difference. First operand 17227 states and 25500 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-23 14:47:51,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:47:56,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:56,137 INFO L93 Difference]: Finished difference Result 34010 states and 50314 transitions. [2022-11-23 14:47:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:56,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 681 [2022-11-23 14:47:56,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:56,212 INFO L225 Difference]: With dead ends: 34010 [2022-11-23 14:47:56,213 INFO L226 Difference]: Without dead ends: 16911 [2022-11-23 14:47:56,269 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 [2022-11-23 14:47:56,269 INFO L413 NwaCegarLoop]: 3356 mSDtfsCounter, 3541 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3549 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:56,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3549 Valid, 3448 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 321 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 14:47:56,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16911 states. [2022-11-23 14:47:57,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16911 to 16911. [2022-11-23 14:47:57,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16911 states, 11018 states have (on average 1.3718460700671629) internal successors, (15115), 11372 states have internal predecessors, (15115), 4513 states have call successors, (4513), 1380 states have call predecessors, (4513), 1379 states have return successors, (5360), 4447 states have call predecessors, (5360), 4508 states have call successors, (5360) [2022-11-23 14:47:57,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16911 states to 16911 states and 24988 transitions. [2022-11-23 14:47:57,647 INFO L78 Accepts]: Start accepts. Automaton has 16911 states and 24988 transitions. Word has length 681 [2022-11-23 14:47:57,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:57,649 INFO L495 AbstractCegarLoop]: Abstraction has 16911 states and 24988 transitions. [2022-11-23 14:47:57,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-23 14:47:57,649 INFO L276 IsEmpty]: Start isEmpty. Operand 16911 states and 24988 transitions. [2022-11-23 14:47:57,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2022-11-23 14:47:57,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:57,674 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 17, 17, 17, 17, 17, 17, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:57,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 14:47:57,674 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:47:57,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:57,675 INFO L85 PathProgramCache]: Analyzing trace with hash -860696877, now seen corresponding path program 1 times [2022-11-23 14:47:57,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:57,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735082336] [2022-11-23 14:47:57,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:57,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:58,766 INFO L134 CoverageAnalysis]: Checked inductivity of 8364 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8362 trivial. 0 not checked. [2022-11-23 14:47:58,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:58,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735082336] [2022-11-23 14:47:58,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735082336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:58,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:58,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:47:58,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470934792] [2022-11-23 14:47:58,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:58,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:47:58,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:58,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:47:58,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:58,770 INFO L87 Difference]: Start difference. First operand 16911 states and 24988 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-11-23 14:48:02,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:06,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:08,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:09,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:14,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:14,978 INFO L93 Difference]: Finished difference Result 36209 states and 53435 transitions. [2022-11-23 14:48:14,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:48:14,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 690 [2022-11-23 14:48:14,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:15,046 INFO L225 Difference]: With dead ends: 36209 [2022-11-23 14:48:15,047 INFO L226 Difference]: Without dead ends: 19426 [2022-11-23 14:48:15,100 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 [2022-11-23 14:48:15,101 INFO L413 NwaCegarLoop]: 5491 mSDtfsCounter, 3413 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3421 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:15,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3421 Valid, 8672 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 762 Invalid, 1 Unknown, 0 Unchecked, 14.7s Time] [2022-11-23 14:48:15,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19426 states. [2022-11-23 14:48:16,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19426 to 19407. [2022-11-23 14:48:16,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19407 states, 12660 states have (on average 1.3711690363349132) internal successors, (17359), 13049 states have internal predecessors, (17359), 5136 states have call successors, (5136), 1611 states have call predecessors, (5136), 1610 states have return successors, (6109), 5062 states have call predecessors, (6109), 5131 states have call successors, (6109) [2022-11-23 14:48:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19407 states to 19407 states and 28604 transitions. [2022-11-23 14:48:16,432 INFO L78 Accepts]: Start accepts. Automaton has 19407 states and 28604 transitions. Word has length 690 [2022-11-23 14:48:16,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:16,434 INFO L495 AbstractCegarLoop]: Abstraction has 19407 states and 28604 transitions. [2022-11-23 14:48:16,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-11-23 14:48:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 19407 states and 28604 transitions. [2022-11-23 14:48:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2022-11-23 14:48:16,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:16,457 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 17, 17, 17, 17, 17, 17, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:16,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 14:48:16,457 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:16,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:16,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1940065937, now seen corresponding path program 1 times [2022-11-23 14:48:16,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:16,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244707322] [2022-11-23 14:48:16,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:16,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 8760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8760 trivial. 0 not checked. [2022-11-23 14:48:18,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:48:18,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244707322] [2022-11-23 14:48:18,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244707322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:18,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:18,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:48:18,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003643991] [2022-11-23 14:48:18,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:18,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:48:18,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:48:18,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:48:18,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:48:18,387 INFO L87 Difference]: Start difference. First operand 19407 states and 28604 transitions. Second operand has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (71), 2 states have call predecessors, (71), 3 states have return successors, (67), 3 states have call predecessors, (67), 1 states have call successors, (67) [2022-11-23 14:48:20,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:24,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:26,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:29,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:31,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:34,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:36,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:46,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:46,916 INFO L93 Difference]: Finished difference Result 38786 states and 57399 transitions. [2022-11-23 14:48:46,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:48:46,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (71), 2 states have call predecessors, (71), 3 states have return successors, (67), 3 states have call predecessors, (67), 1 states have call successors, (67) Word has length 717 [2022-11-23 14:48:46,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:46,988 INFO L225 Difference]: With dead ends: 38786 [2022-11-23 14:48:46,988 INFO L226 Difference]: Without dead ends: 19507 [2022-11-23 14:48:47,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:48:47,057 INFO L413 NwaCegarLoop]: 3358 mSDtfsCounter, 58 mSDsluCounter, 16696 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 20054 SdHoareTripleChecker+Invalid, 1773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:47,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 20054 Invalid, 1773 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1765 Invalid, 4 Unknown, 0 Unchecked, 26.6s Time] [2022-11-23 14:48:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19507 states. [2022-11-23 14:48:48,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19507 to 19467. [2022-11-23 14:48:48,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19467 states, 12700 states have (on average 1.37) internal successors, (17399), 13089 states have internal predecessors, (17399), 5136 states have call successors, (5136), 1611 states have call predecessors, (5136), 1630 states have return successors, (6163), 5082 states have call predecessors, (6163), 5131 states have call successors, (6163) [2022-11-23 14:48:48,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19467 states to 19467 states and 28698 transitions. [2022-11-23 14:48:48,386 INFO L78 Accepts]: Start accepts. Automaton has 19467 states and 28698 transitions. Word has length 717 [2022-11-23 14:48:48,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:48,387 INFO L495 AbstractCegarLoop]: Abstraction has 19467 states and 28698 transitions. [2022-11-23 14:48:48,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (71), 2 states have call predecessors, (71), 3 states have return successors, (67), 3 states have call predecessors, (67), 1 states have call successors, (67) [2022-11-23 14:48:48,388 INFO L276 IsEmpty]: Start isEmpty. Operand 19467 states and 28698 transitions. [2022-11-23 14:48:48,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2022-11-23 14:48:48,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:48,413 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 17, 17, 17, 17, 17, 17, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:48,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 14:48:48,413 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:48,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:48,414 INFO L85 PathProgramCache]: Analyzing trace with hash 632818427, now seen corresponding path program 1 times [2022-11-23 14:48:48,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:48,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500775029] [2022-11-23 14:48:48,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:48,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:49,470 INFO L134 CoverageAnalysis]: Checked inductivity of 8760 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8754 trivial. 0 not checked. [2022-11-23 14:48:49,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:48:49,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500775029] [2022-11-23 14:48:49,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500775029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:49,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:49,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:48:49,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431666352] [2022-11-23 14:48:49,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:49,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:48:49,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:48:49,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:48:49,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:48:49,474 INFO L87 Difference]: Start difference. First operand 19467 states and 28698 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-23 14:48:53,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:56,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:58,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:00,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:07,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:07,111 INFO L93 Difference]: Finished difference Result 46093 states and 68152 transitions. [2022-11-23 14:49:07,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:49:07,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 715 [2022-11-23 14:49:07,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:07,217 INFO L225 Difference]: With dead ends: 46093 [2022-11-23 14:49:07,217 INFO L226 Difference]: Without dead ends: 29614 [2022-11-23 14:49:07,276 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 [2022-11-23 14:49:07,277 INFO L413 NwaCegarLoop]: 4910 mSDtfsCounter, 3254 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 72 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3262 SdHoareTripleChecker+Valid, 8114 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:07,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3262 Valid, 8114 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 801 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2022-11-23 14:49:07,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29614 states. [2022-11-23 14:49:09,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29614 to 29549. [2022-11-23 14:49:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29549 states, 19342 states have (on average 1.3703856891738186) internal successors, (26506), 19953 states have internal predecessors, (26506), 7760 states have call successors, (7760), 2419 states have call predecessors, (7760), 2446 states have return successors, (9291), 7662 states have call predecessors, (9291), 7755 states have call successors, (9291) [2022-11-23 14:49:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29549 states to 29549 states and 43557 transitions. [2022-11-23 14:49:09,241 INFO L78 Accepts]: Start accepts. Automaton has 29549 states and 43557 transitions. Word has length 715 [2022-11-23 14:49:09,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:09,242 INFO L495 AbstractCegarLoop]: Abstraction has 29549 states and 43557 transitions. [2022-11-23 14:49:09,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-23 14:49:09,243 INFO L276 IsEmpty]: Start isEmpty. Operand 29549 states and 43557 transitions. [2022-11-23 14:49:09,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2022-11-23 14:49:09,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:09,268 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 17, 17, 17, 17, 17, 17, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:09,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 14:49:09,269 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:49:09,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:09,269 INFO L85 PathProgramCache]: Analyzing trace with hash 127335345, now seen corresponding path program 1 times [2022-11-23 14:49:09,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:49:09,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176219097] [2022-11-23 14:49:09,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:49:09,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:49:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:49:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 8760 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8754 trivial. 0 not checked. [2022-11-23 14:49:13,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:49:13,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176219097] [2022-11-23 14:49:13,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176219097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:13,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:49:13,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:49:13,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576706470] [2022-11-23 14:49:13,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:13,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:49:13,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:49:13,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:49:13,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:49:13,013 INFO L87 Difference]: Start difference. First operand 29549 states and 43557 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 3 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-23 14:49:15,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:18,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:24,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:25,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:33,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:33,656 INFO L93 Difference]: Finished difference Result 58953 states and 87670 transitions. [2022-11-23 14:49:33,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:49:33,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 3 states have call predecessors, (65), 2 states have call successors, (65) Word has length 714 [2022-11-23 14:49:33,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:33,793 INFO L225 Difference]: With dead ends: 58953 [2022-11-23 14:49:33,794 INFO L226 Difference]: Without dead ends: 32392 [2022-11-23 14:49:33,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:49:33,876 INFO L413 NwaCegarLoop]: 3894 mSDtfsCounter, 396 mSDsluCounter, 11207 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 15101 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:33,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 15101 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1223 Invalid, 3 Unknown, 0 Unchecked, 18.9s Time] [2022-11-23 14:49:33,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32392 states. [2022-11-23 14:49:35,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32392 to 29573. [2022-11-23 14:49:35,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29573 states, 19360 states have (on average 1.3700413223140495) internal successors, (26524), 19971 states have internal predecessors, (26524), 7760 states have call successors, (7760), 2419 states have call predecessors, (7760), 2452 states have return successors, (9357), 7668 states have call predecessors, (9357), 7755 states have call successors, (9357) [2022-11-23 14:49:35,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29573 states to 29573 states and 43641 transitions. [2022-11-23 14:49:35,771 INFO L78 Accepts]: Start accepts. Automaton has 29573 states and 43641 transitions. Word has length 714 [2022-11-23 14:49:35,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:35,772 INFO L495 AbstractCegarLoop]: Abstraction has 29573 states and 43641 transitions. [2022-11-23 14:49:35,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 3 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-23 14:49:35,773 INFO L276 IsEmpty]: Start isEmpty. Operand 29573 states and 43641 transitions. [2022-11-23 14:49:35,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2022-11-23 14:49:35,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:35,792 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 17, 17, 17, 17, 17, 17, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:35,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 14:49:35,793 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:49:35,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:35,793 INFO L85 PathProgramCache]: Analyzing trace with hash -336990310, now seen corresponding path program 1 times [2022-11-23 14:49:35,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:49:35,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115836441] [2022-11-23 14:49:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:49:35,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:49:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:49:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 8011 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8004 trivial. 0 not checked. [2022-11-23 14:49:41,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:49:41,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115836441] [2022-11-23 14:49:41,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115836441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:41,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:49:41,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:49:41,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429797619] [2022-11-23 14:49:41,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:41,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:49:41,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:49:41,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:49:41,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:49:41,110 INFO L87 Difference]: Start difference. First operand 29573 states and 43641 transitions. Second operand has 11 states, 8 states have (on average 16.75) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (83), 2 states have call predecessors, (83), 5 states have return successors, (74), 6 states have call predecessors, (74), 2 states have call successors, (74) [2022-11-23 14:49:43,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:48,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:50,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:54,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:58,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:03,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:05,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:06,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:07,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:09,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:11,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:13,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:31,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:31,165 INFO L93 Difference]: Finished difference Result 59238 states and 88514 transitions. [2022-11-23 14:50:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:50:31,169 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 16.75) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (83), 2 states have call predecessors, (83), 5 states have return successors, (74), 6 states have call predecessors, (74), 2 states have call successors, (74) Word has length 725 [2022-11-23 14:50:31,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:31,317 INFO L225 Difference]: With dead ends: 59238 [2022-11-23 14:50:31,317 INFO L226 Difference]: Without dead ends: 29793 [2022-11-23 14:50:31,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:50:31,429 INFO L413 NwaCegarLoop]: 3372 mSDtfsCounter, 2 mSDsluCounter, 30285 mSDsCounter, 0 mSdLazyCounter, 2977 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 33657 SdHoareTripleChecker+Invalid, 2983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2977 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:31,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 33657 Invalid, 2983 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2977 Invalid, 6 Unknown, 0 Unchecked, 48.1s Time] [2022-11-23 14:50:31,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29793 states. [2022-11-23 14:50:33,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29793 to 29729. [2022-11-23 14:50:33,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29729 states, 19452 states have (on average 1.3682911782850093) internal successors, (26616), 20071 states have internal predecessors, (26616), 7760 states have call successors, (7760), 2419 states have call predecessors, (7760), 2516 states have return successors, (9957), 7724 states have call predecessors, (9957), 7755 states have call successors, (9957) [2022-11-23 14:50:33,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29729 states to 29729 states and 44333 transitions. [2022-11-23 14:50:33,748 INFO L78 Accepts]: Start accepts. Automaton has 29729 states and 44333 transitions. Word has length 725 [2022-11-23 14:50:33,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:33,749 INFO L495 AbstractCegarLoop]: Abstraction has 29729 states and 44333 transitions. [2022-11-23 14:50:33,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 16.75) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (83), 2 states have call predecessors, (83), 5 states have return successors, (74), 6 states have call predecessors, (74), 2 states have call successors, (74) [2022-11-23 14:50:33,749 INFO L276 IsEmpty]: Start isEmpty. Operand 29729 states and 44333 transitions. [2022-11-23 14:50:33,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2022-11-23 14:50:33,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:33,768 INFO L195 NwaCegarLoop]: trace histogram [41, 40, 40, 40, 40, 40, 40, 40, 40, 17, 17, 17, 17, 17, 17, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:33,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 14:50:33,768 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:33,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:33,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2084989145, now seen corresponding path program 1 times [2022-11-23 14:50:33,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:33,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322652197] [2022-11-23 14:50:33,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:33,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:36,693 INFO L134 CoverageAnalysis]: Checked inductivity of 8840 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 8760 trivial. 0 not checked. [2022-11-23 14:50:36,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:36,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322652197] [2022-11-23 14:50:36,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322652197] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:50:36,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672693347] [2022-11-23 14:50:36,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:36,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:50:36,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:36,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:50:36,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f69f56-de06-48af-a700-e3e03ad80fcc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:50:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:42,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 7720 conjuncts, 406 conjunts are in the unsatisfiable core [2022-11-23 14:50:42,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:42,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-23 14:50:42,859 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 [2022-11-23 14:50:43,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:43,516 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7518 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_7518) |c_#memory_int|)) is different from true [2022-11-23 14:50:43,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:43,653 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 6 treesize of output 5 [2022-11-23 14:50:43,747 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:50:43,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:50:43,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:43,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:43,898 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7520 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_7520) |c_#memory_int|)) is different from true [2022-11-23 14:50:44,032 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 6 treesize of output 5 [2022-11-23 14:50:44,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:44,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:44,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:44,138 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:50:44,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:50:44,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:44,272 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7522 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_7522) |c_#memory_int|)) is different from true [2022-11-23 14:50:44,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:44,402 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 6 treesize of output 5 [2022-11-23 14:50:44,484 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:50:44,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:50:44,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:44,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:44,623 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7524 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_7524))) is different from true [2022-11-23 14:50:44,742 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 6 treesize of output 5 [2022-11-23 14:50:44,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:44,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:44,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:44,841 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:50:44,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:50:44,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:45,367 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 6 treesize of output 5 [2022-11-23 14:50:45,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:45,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:45,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:45,588 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:50:45,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:50:45,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:46,019 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 6 treesize of output 5 [2022-11-23 14:50:46,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:46,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:46,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:46,272 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:50:46,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-23 14:50:46,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:46,705 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 6 treesize of output 5 [2022-11-23 14:50:46,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:46,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:46,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:47,003 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-23 14:50:47,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-23 14:50:47,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:47,356 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7532 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_7532) |c_#memory_int|)) is different from true [2022-11-23 14:50:47,459 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 6 treesize of output 5 [2022-11-23 14:50:47,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:47,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:47,660 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-23 14:50:47,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2022-11-23 14:50:47,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:48,171 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 6 treesize of output 5 [2022-11-23 14:50:48,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:48,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:48,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:48,498 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-23 14:50:48,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2022-11-23 14:50:49,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:49,035 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7536 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_7536) |c_#memory_int|)) is different from true [2022-11-23 14:50:49,139 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 6 treesize of output 5 [2022-11-23 14:50:49,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:49,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:49,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:49,377 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:50:49,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2022-11-23 14:50:49,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:49,675 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7538 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_7538))) is different from true [2022-11-23 14:50:49,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:49,785 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 6 treesize of output 5 [2022-11-23 14:50:50,022 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:50:50,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2022-11-23 14:50:50,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:50,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:50,489 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7540 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_7540))) is different from true [2022-11-23 14:50:50,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:50,603 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 6 treesize of output 5 [2022-11-23 14:50:50,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:50,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:50,846 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:50:50,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2022-11-23 14:50:51,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:51,447 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 6 treesize of output 5 [2022-11-23 14:50:51,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:51,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:51,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:51,789 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:50:51,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2022-11-23 14:50:52,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:52,483 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 6 treesize of output 5 [2022-11-23 14:50:52,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:52,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:52,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:52,829 INFO L321 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2022-11-23 14:50:52,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 42 treesize of output 81 [2022-11-23 14:50:53,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:53,680 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 6 treesize of output 5 [2022-11-23 14:50:53,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:53,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:53,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:54,037 INFO L321 Elim1Store]: treesize reduction 126, result has 33.7 percent of original size [2022-11-23 14:50:54,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 47 treesize of output 93 [2022-11-23 14:50:56,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:56,630 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 6 treesize of output 5 [2022-11-23 14:50:56,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:50:56,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:50:57,091 INFO L321 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2022-11-23 14:50:57,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 52 treesize of output 105 [2022-11-23 14:51:10,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:51:10,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:51:10,620 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 [2022-11-23 14:51:11,216 INFO L321 Elim1Store]: treesize reduction 162, result has 33.6 percent of original size [2022-11-23 14:51:11,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 57 treesize of output 117 [2022-11-23 14:51:11,587 INFO L321 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2022-11-23 14:51:11,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:51:35,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:51:35,792 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_init_zalloc_#t~malloc69.base_BEFORE_CALL_6| Int)) (= (select |c_#valid| |v_ldv_init_zalloc_#t~malloc69.base_BEFORE_CALL_6|) 1)) (exists ((v_ArrVal_7552 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_7552) |c_#memory_int|))) is different from true [2022-11-23 14:51:35,910 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 6 treesize of output 5 [2022-11-23 14:51:35,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:51:36,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:51:36,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:51:36,515 INFO L321 Elim1Store]: treesize reduction 180, result has 33.6 percent of original size [2022-11-23 14:51:36,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 62 treesize of output 129 [2022-11-23 14:52:09,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:52:09,969 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 6 treesize of output 5 [2022-11-23 14:52:09,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:52:10,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:10,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:52:10,736 INFO L321 Elim1Store]: treesize reduction 198, result has 33.6 percent of original size [2022-11-23 14:52:10,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 55 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 22 case distinctions, treesize of input 67 treesize of output 141 [2022-11-23 14:52:53,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:52:53,657 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 6 treesize of output 5 [2022-11-23 14:52:53,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:52:53,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:53,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:52:54,384 INFO L321 Elim1Store]: treesize reduction 216, result has 33.5 percent of original size [2022-11-23 14:52:54,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 66 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 24 case distinctions, treesize of input 72 treesize of output 153 [2022-11-23 14:53:45,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:53:45,568 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7558 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_7558) |c_#memory_int|)) is different from true [2022-11-23 14:53:45,665 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 6 treesize of output 5 [2022-11-23 14:53:45,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:53:46,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:53:46,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 14:53:46,504 INFO L321 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2022-11-23 14:53:46,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 78 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 26 case distinctions, treesize of input 77 treesize of output 165 [2022-11-23 14:53:48,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:53:49,003 WARN L859 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.meminit_#ptr.base| Int)) (= (store |c_old(#memory_int)| |#Ultimate.meminit_#ptr.base| ((as const (Array Int Int)) 0)) |c_#memory_int|)) is different from true [2022-11-23 14:53:49,187 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 [2022-11-23 14:53:49,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:53:49,853 INFO L321 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2022-11-23 14:53:49,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:53:50,266 INFO L321 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2022-11-23 14:53:50,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 78 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 26 case distinctions, treesize of input 77 treesize of output 165 [2022-11-23 14:54:41,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 12 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 [2022-11-23 14:55:57,505 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 402 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:56:01,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 12 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 [2022-11-23 14:56:12,057 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 400 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:46,492 WARN L233 SmtUtils]: Spent 9.35s on a formula simplification that was a NOOP. DAG size: 599 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:57:50,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 12 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 [2022-11-23 14:58:09,312 WARN L233 SmtUtils]: Spent 9.29s on a formula simplification that was a NOOP. DAG size: 597 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)