./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI --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 4c74f17ad80d26d3384a467dad9313e9d7d1be91817d15d75e196d6ef78bc5b2 --- 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-5e519f3 [2022-11-03 02:17:07,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:17:07,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:17:07,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:17:07,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:17:07,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:17:07,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:17:07,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:17:07,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:17:07,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:17:07,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:17:07,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:17:07,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:17:07,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:17:07,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:17:07,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:17:07,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:17:07,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:17:07,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:17:07,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:17:07,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:17:07,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:17:07,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:17:07,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:17:07,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:17:07,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:17:07,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:17:07,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:17:07,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:17:07,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:17:07,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:17:07,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:17:07,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:17:07,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:17:07,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:17:07,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:17:07,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:17:07,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:17:07,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:17:07,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:17:07,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:17:07,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:17:07,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:17:07,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:17:07,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:17:07,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:17:07,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:17:07,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:17:07,306 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:17:07,306 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:17:07,306 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:17:07,307 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:17:07,308 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:17:07,308 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:17:07,308 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:17:07,308 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:17:07,309 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:17:07,309 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:17:07,309 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:17:07,309 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:17:07,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:17:07,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:17:07,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:17:07,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:17:07,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:17:07,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:17:07,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:17:07,326 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:17:07,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:17:07,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:17:07,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:17:07,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:17:07,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:17:07,327 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:17:07,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:17:07,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:17:07,328 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:17:07,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:17:07,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:17:07,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:17:07,328 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_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c74f17ad80d26d3384a467dad9313e9d7d1be91817d15d75e196d6ef78bc5b2 [2022-11-03 02:17:07,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:17:07,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:17:07,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:17:07,681 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:17:07,682 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:17:07,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i [2022-11-03 02:17:07,759 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/data/9944c3224/ce484c648c4745e1ae64562fd4639b1e/FLAG8c2425fe4 [2022-11-03 02:17:08,814 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:17:08,815 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i [2022-11-03 02:17:08,863 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/data/9944c3224/ce484c648c4745e1ae64562fd4639b1e/FLAG8c2425fe4 [2022-11-03 02:17:09,150 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/data/9944c3224/ce484c648c4745e1ae64562fd4639b1e [2022-11-03 02:17:09,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:17:09,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:17:09,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:17:09,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:17:09,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:17:09,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:17:09" (1/1) ... [2022-11-03 02:17:09,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10652a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:09, skipping insertion in model container [2022-11-03 02:17:09,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:17:09" (1/1) ... [2022-11-03 02:17:09,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:17:09,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:17:11,840 WARN L230 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_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i[315625,315638] [2022-11-03 02:17:11,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:17:11,944 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:17:12,537 WARN L230 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_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i[315625,315638] [2022-11-03 02:17:12,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:17:12,640 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:17:12,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12 WrapperNode [2022-11-03 02:17:12,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:17:12,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:17:12,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:17:12,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:17:12,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:12,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:13,156 INFO L138 Inliner]: procedures = 259, calls = 4373, calls flagged for inlining = 103, calls inlined = 98, statements flattened = 8445 [2022-11-03 02:17:13,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:17:13,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:17:13,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:17:13,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:17:13,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:13,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:13,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:13,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:13,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:13,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:13,675 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:13,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:13,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:17:13,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:17:13,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:17:13,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:17:13,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (1/1) ... [2022-11-03 02:17:13,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:17:13,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:17:13,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:17:13,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02d55b8e-e7b1-4e8b-b0bf-9295fb920322/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:17:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2022-11-03 02:17:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2022-11-03 02:17:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:17:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:17:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2022-11-03 02:17:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2022-11-03 02:17:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2022-11-03 02:17:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2022-11-03 02:17:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:17:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:17:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:17:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:17:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-03 02:17:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-03 02:17:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2022-11-03 02:17:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2022-11-03 02:17:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 02:17:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 02:17:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:17:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:17:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-03 02:17:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-03 02:17:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-11-03 02:17:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-11-03 02:17:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2022-11-03 02:17:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2022-11-03 02:17:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2022-11-03 02:17:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2022-11-03 02:17:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2022-11-03 02:17:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2022-11-03 02:17:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2022-11-03 02:17:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2022-11-03 02:17:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:17:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:17:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:17:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:17:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2022-11-03 02:17:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2022-11-03 02:17:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-11-03 02:17:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-11-03 02:17:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2022-11-03 02:17:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2022-11-03 02:17:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:17:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:17:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:17:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:17:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2022-11-03 02:17:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2022-11-03 02:17:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:17:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:17:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-11-03 02:17:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-11-03 02:17:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2022-11-03 02:17:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2022-11-03 02:17:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-03 02:17:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-03 02:17:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2022-11-03 02:17:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2022-11-03 02:17:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:17:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2022-11-03 02:17:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2022-11-03 02:17:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:17:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:17:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:17:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-11-03 02:17:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-11-03 02:17:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 02:17:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 02:17:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2022-11-03 02:17:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2022-11-03 02:17:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2022-11-03 02:17:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2022-11-03 02:17:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:17:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:17:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-11-03 02:17:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-11-03 02:17:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure update_done_list [2022-11-03 02:17:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure update_done_list [2022-11-03 02:17:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2022-11-03 02:17:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2022-11-03 02:17:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:17:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2022-11-03 02:17:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2022-11-03 02:17:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:17:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2022-11-03 02:17:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2022-11-03 02:17:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2022-11-03 02:17:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2022-11-03 02:17:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-03 02:17:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-03 02:17:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:17:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:17:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 02:17:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 02:17:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:17:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:17:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2022-11-03 02:17:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2022-11-03 02:17:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:17:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:17:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start [2022-11-03 02:17:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start [2022-11-03 02:17:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2022-11-03 02:17:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2022-11-03 02:17:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_setup [2022-11-03 02:17:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_setup [2022-11-03 02:17:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2022-11-03 02:17:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2022-11-03 02:17:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:17:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:17:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2022-11-03 02:17:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2022-11-03 02:17:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2022-11-03 02:17:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2022-11-03 02:17:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2022-11-03 02:17:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2022-11-03 02:17:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-11-03 02:17:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-11-03 02:17:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:17:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2022-11-03 02:17:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2022-11-03 02:17:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 02:17:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 02:17:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2022-11-03 02:17:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2022-11-03 02:17:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2022-11-03 02:17:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2022-11-03 02:17:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2022-11-03 02:17:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2022-11-03 02:17:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2022-11-03 02:17:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2022-11-03 02:17:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2022-11-03 02:17:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2022-11-03 02:17:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2022-11-03 02:17:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2022-11-03 02:17:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2022-11-03 02:17:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2022-11-03 02:17:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2022-11-03 02:17:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2022-11-03 02:17:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:17:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:17:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2022-11-03 02:17:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2022-11-03 02:17:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2022-11-03 02:17:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2022-11-03 02:17:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-11-03 02:17:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-11-03 02:17:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:17:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:17:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2022-11-03 02:17:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2022-11-03 02:17:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-03 02:17:14,006 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-03 02:17:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2022-11-03 02:17:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2022-11-03 02:17:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:17:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2022-11-03 02:17:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2022-11-03 02:17:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 02:17:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 02:17:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:17:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:17:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-03 02:17:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-03 02:17:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 02:17:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 02:17:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_done_list [2022-11-03 02:17:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_done_list [2022-11-03 02:17:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2022-11-03 02:17:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2022-11-03 02:17:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:17:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-11-03 02:17:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-11-03 02:17:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-11-03 02:17:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-11-03 02:17:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 02:17:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 02:17:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 02:17:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 02:17:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:17:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2022-11-03 02:17:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2022-11-03 02:17:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-03 02:17:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-03 02:17:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:17:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:17:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:17:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2022-11-03 02:17:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2022-11-03 02:17:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2022-11-03 02:17:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2022-11-03 02:17:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2022-11-03 02:17:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2022-11-03 02:17:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2022-11-03 02:17:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2022-11-03 02:17:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 02:17:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 02:17:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_work [2022-11-03 02:17:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_work [2022-11-03 02:17:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2022-11-03 02:17:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2022-11-03 02:17:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-03 02:17:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-03 02:17:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 02:17:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 02:17:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2022-11-03 02:17:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2022-11-03 02:17:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-11-03 02:17:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-11-03 02:17:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 02:17:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 02:17:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2022-11-03 02:17:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2022-11-03 02:17:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-11-03 02:17:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-11-03 02:17:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2022-11-03 02:17:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2022-11-03 02:17:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2022-11-03 02:17:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2022-11-03 02:17:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-11-03 02:17:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-11-03 02:17:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2022-11-03 02:17:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2022-11-03 02:17:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:17:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:17:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 02:17:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 02:17:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-11-03 02:17:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-11-03 02:17:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:17:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:17:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2022-11-03 02:17:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2022-11-03 02:17:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2022-11-03 02:17:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2022-11-03 02:17:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:17:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:17:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2022-11-03 02:17:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2022-11-03 02:17:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:17:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:17:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:17:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-11-03 02:17:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-11-03 02:17:15,264 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:17:15,284 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:17:16,162 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:17:25,697 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:17:28,945 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:17:28,946 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 02:17:28,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:17:28 BoogieIcfgContainer [2022-11-03 02:17:28,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:17:28,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:17:28,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:17:28,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:17:28,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:17:09" (1/3) ... [2022-11-03 02:17:28,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161027ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:17:28, skipping insertion in model container [2022-11-03 02:17:28,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:17:12" (2/3) ... [2022-11-03 02:17:28,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161027ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:17:28, skipping insertion in model container [2022-11-03 02:17:28,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:17:28" (3/3) ... [2022-11-03 02:17:28,963 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i [2022-11-03 02:17:28,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:17:28,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:17:29,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:17:29,104 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;@79fcdf97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:17:29,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:17:29,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 2367 states, 1495 states have (on average 1.3578595317725752) internal successors, (2030), 1565 states have internal predecessors, (2030), 759 states have call successors, (759), 116 states have call predecessors, (759), 115 states have return successors, (752), 745 states have call predecessors, (752), 752 states have call successors, (752) [2022-11-03 02:17:29,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-11-03 02:17:29,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:29,141 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:29,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:29,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:29,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1328296461, now seen corresponding path program 1 times [2022-11-03 02:17:29,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:29,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966045030] [2022-11-03 02:17:29,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:29,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-11-03 02:17:30,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:30,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966045030] [2022-11-03 02:17:30,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966045030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:30,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:30,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:17:30,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857378155] [2022-11-03 02:17:30,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:30,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:30,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:30,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:30,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:17:30,808 INFO L87 Difference]: Start difference. First operand has 2367 states, 1495 states have (on average 1.3578595317725752) internal successors, (2030), 1565 states have internal predecessors, (2030), 759 states have call successors, (759), 116 states have call predecessors, (759), 115 states have return successors, (752), 745 states have call predecessors, (752), 752 states have call successors, (752) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:17:32,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:36,163 INFO L93 Difference]: Finished difference Result 6942 states and 10491 transitions. [2022-11-03 02:17:36,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:36,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 270 [2022-11-03 02:17:36,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:36,216 INFO L225 Difference]: With dead ends: 6942 [2022-11-03 02:17:36,216 INFO L226 Difference]: Without dead ends: 4605 [2022-11-03 02:17:36,237 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 [2022-11-03 02:17:36,240 INFO L413 NwaCegarLoop]: 3947 mSDtfsCounter, 3393 mSDsluCounter, 3498 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3393 SdHoareTripleChecker+Valid, 7161 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:36,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3393 Valid, 7161 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 590 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 02:17:36,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2022-11-03 02:17:36,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4601. [2022-11-03 02:17:36,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4601 states, 2914 states have (on average 1.3544955387783115) internal successors, (3947), 3037 states have internal predecessors, (3947), 1459 states have call successors, (1459), 228 states have call predecessors, (1459), 227 states have return successors, (1458), 1443 states have call predecessors, (1458), 1458 states have call successors, (1458) [2022-11-03 02:17:36,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4601 states to 4601 states and 6864 transitions. [2022-11-03 02:17:36,624 INFO L78 Accepts]: Start accepts. Automaton has 4601 states and 6864 transitions. Word has length 270 [2022-11-03 02:17:36,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:36,628 INFO L495 AbstractCegarLoop]: Abstraction has 4601 states and 6864 transitions. [2022-11-03 02:17:36,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:17:36,628 INFO L276 IsEmpty]: Start isEmpty. Operand 4601 states and 6864 transitions. [2022-11-03 02:17:36,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-03 02:17:36,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:36,644 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:36,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:17:36,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:36,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:36,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1274680962, now seen corresponding path program 1 times [2022-11-03 02:17:36,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:36,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138766566] [2022-11-03 02:17:36,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:36,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-11-03 02:17:37,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:37,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138766566] [2022-11-03 02:17:37,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138766566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:37,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:37,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:17:37,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086776836] [2022-11-03 02:17:37,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:37,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:37,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:37,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:37,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:17:37,490 INFO L87 Difference]: Start difference. First operand 4601 states and 6864 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:17:39,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:43,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:43,308 INFO L93 Difference]: Finished difference Result 13646 states and 20355 transitions. [2022-11-03 02:17:43,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:43,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 273 [2022-11-03 02:17:43,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:43,382 INFO L225 Difference]: With dead ends: 13646 [2022-11-03 02:17:43,382 INFO L226 Difference]: Without dead ends: 9100 [2022-11-03 02:17:43,411 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 [2022-11-03 02:17:43,413 INFO L413 NwaCegarLoop]: 3947 mSDtfsCounter, 3363 mSDsluCounter, 3475 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3363 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:43,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3363 Valid, 7139 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 589 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 02:17:43,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9100 states. [2022-11-03 02:17:43,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9100 to 9095. [2022-11-03 02:17:43,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9095 states, 5764 states have (on average 1.3553088133240805) internal successors, (7812), 6011 states have internal predecessors, (7812), 2877 states have call successors, (2877), 454 states have call predecessors, (2877), 453 states have return successors, (2876), 2845 states have call predecessors, (2876), 2876 states have call successors, (2876) [2022-11-03 02:17:43,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9095 states to 9095 states and 13565 transitions. [2022-11-03 02:17:43,994 INFO L78 Accepts]: Start accepts. Automaton has 9095 states and 13565 transitions. Word has length 273 [2022-11-03 02:17:43,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:43,999 INFO L495 AbstractCegarLoop]: Abstraction has 9095 states and 13565 transitions. [2022-11-03 02:17:44,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:17:44,000 INFO L276 IsEmpty]: Start isEmpty. Operand 9095 states and 13565 transitions. [2022-11-03 02:17:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-03 02:17:44,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:44,008 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:44,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:17:44,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:44,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:44,019 INFO L85 PathProgramCache]: Analyzing trace with hash -127004323, now seen corresponding path program 1 times [2022-11-03 02:17:44,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:44,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698179977] [2022-11-03 02:17:44,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:44,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-11-03 02:17:44,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:44,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698179977] [2022-11-03 02:17:44,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698179977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:44,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:44,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:17:44,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817290990] [2022-11-03 02:17:44,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:44,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:44,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:44,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:44,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:17:44,881 INFO L87 Difference]: Start difference. First operand 9095 states and 13565 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:17:46,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:50,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:50,552 INFO L93 Difference]: Finished difference Result 26915 states and 40149 transitions. [2022-11-03 02:17:50,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:50,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 275 [2022-11-03 02:17:50,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:50,740 INFO L225 Difference]: With dead ends: 26915 [2022-11-03 02:17:50,741 INFO L226 Difference]: Without dead ends: 17875 [2022-11-03 02:17:50,815 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 [2022-11-03 02:17:50,820 INFO L413 NwaCegarLoop]: 4072 mSDtfsCounter, 3341 mSDsluCounter, 3475 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 7263 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:50,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3341 Valid, 7263 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 615 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-03 02:17:50,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17875 states. [2022-11-03 02:17:52,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17875 to 17872. [2022-11-03 02:17:52,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17872 states, 11335 states have (on average 1.3558888398764888) internal successors, (15369), 11823 states have internal predecessors, (15369), 5645 states have call successors, (5645), 892 states have call predecessors, (5645), 891 states have return successors, (5644), 5585 states have call predecessors, (5644), 5644 states have call successors, (5644) [2022-11-03 02:17:52,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17872 states to 17872 states and 26658 transitions. [2022-11-03 02:17:52,594 INFO L78 Accepts]: Start accepts. Automaton has 17872 states and 26658 transitions. Word has length 275 [2022-11-03 02:17:52,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:52,595 INFO L495 AbstractCegarLoop]: Abstraction has 17872 states and 26658 transitions. [2022-11-03 02:17:52,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:17:52,596 INFO L276 IsEmpty]: Start isEmpty. Operand 17872 states and 26658 transitions. [2022-11-03 02:17:52,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-11-03 02:17:52,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:52,605 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:52,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:17:52,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:52,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:52,607 INFO L85 PathProgramCache]: Analyzing trace with hash 2060201623, now seen corresponding path program 1 times [2022-11-03 02:17:52,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:52,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044601801] [2022-11-03 02:17:52,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:52,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-11-03 02:17:53,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:53,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044601801] [2022-11-03 02:17:53,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044601801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:53,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:53,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:17:53,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489280035] [2022-11-03 02:17:53,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:53,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:53,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:53,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:53,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:17:53,396 INFO L87 Difference]: Start difference. First operand 17872 states and 26658 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 02:17:55,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:17:59,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:59,055 INFO L93 Difference]: Finished difference Result 47464 states and 70307 transitions. [2022-11-03 02:17:59,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:59,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 290 [2022-11-03 02:17:59,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:59,256 INFO L225 Difference]: With dead ends: 47464 [2022-11-03 02:17:59,257 INFO L226 Difference]: Without dead ends: 29647 [2022-11-03 02:17:59,346 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 [2022-11-03 02:17:59,347 INFO L413 NwaCegarLoop]: 4263 mSDtfsCounter, 2324 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 7356 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:59,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2324 Valid, 7356 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 751 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 02:17:59,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29647 states. [2022-11-03 02:18:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29647 to 29640. [2022-11-03 02:18:01,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29640 states, 18734 states have (on average 1.3425856731077186) internal successors, (25152), 19503 states have internal predecessors, (25152), 9282 states have call successors, (9282), 1624 states have call predecessors, (9282), 1623 states have return successors, (9281), 9194 states have call predecessors, (9281), 9281 states have call successors, (9281) [2022-11-03 02:18:01,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29640 states to 29640 states and 43715 transitions. [2022-11-03 02:18:01,466 INFO L78 Accepts]: Start accepts. Automaton has 29640 states and 43715 transitions. Word has length 290 [2022-11-03 02:18:01,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:01,466 INFO L495 AbstractCegarLoop]: Abstraction has 29640 states and 43715 transitions. [2022-11-03 02:18:01,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 02:18:01,467 INFO L276 IsEmpty]: Start isEmpty. Operand 29640 states and 43715 transitions. [2022-11-03 02:18:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-11-03 02:18:01,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:01,478 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:18:01,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:18:01,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:01,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1437495976, now seen corresponding path program 1 times [2022-11-03 02:18:01,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:01,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068240686] [2022-11-03 02:18:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:01,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2200 trivial. 0 not checked. [2022-11-03 02:18:02,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:02,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068240686] [2022-11-03 02:18:02,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068240686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:02,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:02,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:18:02,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207427969] [2022-11-03 02:18:02,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:02,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:18:02,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:02,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:18:02,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:18:02,468 INFO L87 Difference]: Start difference. First operand 29640 states and 43715 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-03 02:18:04,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:08,936 INFO L93 Difference]: Finished difference Result 59273 states and 87414 transitions. [2022-11-03 02:18:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:18:08,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 378 [2022-11-03 02:18:08,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:09,112 INFO L225 Difference]: With dead ends: 59273 [2022-11-03 02:18:09,112 INFO L226 Difference]: Without dead ends: 29640 [2022-11-03 02:18:09,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:18:09,216 INFO L413 NwaCegarLoop]: 3203 mSDtfsCounter, 3 mSDsluCounter, 6973 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 9605 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:09,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 9605 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-03 02:18:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29640 states. [2022-11-03 02:18:10,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29640 to 29640. [2022-11-03 02:18:10,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29640 states, 18734 states have (on average 1.3417316109746984) internal successors, (25136), 19503 states have internal predecessors, (25136), 9282 states have call successors, (9282), 1624 states have call predecessors, (9282), 1623 states have return successors, (9281), 9194 states have call predecessors, (9281), 9281 states have call successors, (9281) [2022-11-03 02:18:11,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29640 states to 29640 states and 43699 transitions. [2022-11-03 02:18:11,028 INFO L78 Accepts]: Start accepts. Automaton has 29640 states and 43699 transitions. Word has length 378 [2022-11-03 02:18:11,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:11,031 INFO L495 AbstractCegarLoop]: Abstraction has 29640 states and 43699 transitions. [2022-11-03 02:18:11,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-03 02:18:11,031 INFO L276 IsEmpty]: Start isEmpty. Operand 29640 states and 43699 transitions. [2022-11-03 02:18:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-11-03 02:18:11,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:11,045 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:18:11,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:18:11,046 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:11,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:11,047 INFO L85 PathProgramCache]: Analyzing trace with hash -413037131, now seen corresponding path program 1 times [2022-11-03 02:18:11,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:11,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045641888] [2022-11-03 02:18:11,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:11,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2022-11-03 02:18:12,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:12,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045641888] [2022-11-03 02:18:12,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045641888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:12,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:12,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:18:12,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088385770] [2022-11-03 02:18:12,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:12,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:12,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:12,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:12,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:18:12,539 INFO L87 Difference]: Start difference. First operand 29640 states and 43699 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-03 02:18:14,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:17,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:17,488 INFO L93 Difference]: Finished difference Result 34557 states and 50251 transitions. [2022-11-03 02:18:17,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:17,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 396 [2022-11-03 02:18:17,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:17,678 INFO L225 Difference]: With dead ends: 34557 [2022-11-03 02:18:17,679 INFO L226 Difference]: Without dead ends: 34554 [2022-11-03 02:18:17,695 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 [2022-11-03 02:18:17,697 INFO L413 NwaCegarLoop]: 3588 mSDtfsCounter, 1787 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 5483 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:17,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 5483 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 536 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-03 02:18:17,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34554 states. [2022-11-03 02:18:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34554 to 34335. [2022-11-03 02:18:19,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34335 states, 21502 states have (on average 1.3301088270858525) internal successors, (28600), 22317 states have internal predecessors, (28600), 10650 states have call successors, (10650), 2175 states have call predecessors, (10650), 2182 states have return successors, (10673), 10532 states have call predecessors, (10673), 10649 states have call successors, (10673) [2022-11-03 02:18:19,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34335 states to 34335 states and 49923 transitions. [2022-11-03 02:18:19,870 INFO L78 Accepts]: Start accepts. Automaton has 34335 states and 49923 transitions. Word has length 396 [2022-11-03 02:18:19,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:19,871 INFO L495 AbstractCegarLoop]: Abstraction has 34335 states and 49923 transitions. [2022-11-03 02:18:19,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-03 02:18:19,871 INFO L276 IsEmpty]: Start isEmpty. Operand 34335 states and 49923 transitions. [2022-11-03 02:18:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2022-11-03 02:18:19,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:19,912 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:18:19,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:18:19,912 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:19,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:19,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1813087911, now seen corresponding path program 1 times [2022-11-03 02:18:19,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:19,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069385807] [2022-11-03 02:18:19,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:19,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:20,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2200 trivial. 0 not checked. [2022-11-03 02:18:20,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:20,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069385807] [2022-11-03 02:18:20,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069385807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:20,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:20,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:18:20,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418606521] [2022-11-03 02:18:20,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:20,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:20,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:20,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:20,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:18:20,842 INFO L87 Difference]: Start difference. First operand 34335 states and 49923 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 02:18:22,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:27,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:27,923 INFO L93 Difference]: Finished difference Result 88668 states and 129138 transitions. [2022-11-03 02:18:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:27,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 416 [2022-11-03 02:18:27,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:28,208 INFO L225 Difference]: With dead ends: 88668 [2022-11-03 02:18:28,209 INFO L226 Difference]: Without dead ends: 54388 [2022-11-03 02:18:28,322 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 [2022-11-03 02:18:28,325 INFO L413 NwaCegarLoop]: 4569 mSDtfsCounter, 3253 mSDsluCounter, 3333 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3253 SdHoareTripleChecker+Valid, 7622 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:28,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3253 Valid, 7622 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 811 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 02:18:28,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54388 states. [2022-11-03 02:18:30,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54388 to 54381. [2022-11-03 02:18:30,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54381 states, 34179 states have (on average 1.3287106117791627) internal successors, (45414), 35514 states have internal predecessors, (45414), 16762 states have call successors, (16762), 3424 states have call predecessors, (16762), 3439 states have return successors, (16809), 16568 states have call predecessors, (16809), 16761 states have call successors, (16809) [2022-11-03 02:18:30,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54381 states to 54381 states and 78985 transitions. [2022-11-03 02:18:31,008 INFO L78 Accepts]: Start accepts. Automaton has 54381 states and 78985 transitions. Word has length 416 [2022-11-03 02:18:31,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:31,013 INFO L495 AbstractCegarLoop]: Abstraction has 54381 states and 78985 transitions. [2022-11-03 02:18:31,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 02:18:31,014 INFO L276 IsEmpty]: Start isEmpty. Operand 54381 states and 78985 transitions. [2022-11-03 02:18:31,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-11-03 02:18:31,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:31,038 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:18:31,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:18:31,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:31,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:31,039 INFO L85 PathProgramCache]: Analyzing trace with hash 483149507, now seen corresponding path program 1 times [2022-11-03 02:18:31,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:31,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798458839] [2022-11-03 02:18:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:31,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2200 trivial. 0 not checked. [2022-11-03 02:18:34,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:34,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798458839] [2022-11-03 02:18:34,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798458839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:34,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:34,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:18:34,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21536949] [2022-11-03 02:18:34,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:34,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:18:34,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:34,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:18:34,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:18:34,289 INFO L87 Difference]: Start difference. First operand 54381 states and 78985 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-03 02:18:36,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:18:48,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:48,152 INFO L93 Difference]: Finished difference Result 163337 states and 237457 transitions. [2022-11-03 02:18:48,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:18:48,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) Word has length 415 [2022-11-03 02:18:48,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:48,719 INFO L225 Difference]: With dead ends: 163337 [2022-11-03 02:18:48,719 INFO L226 Difference]: Without dead ends: 109011 [2022-11-03 02:18:48,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:18:48,891 INFO L413 NwaCegarLoop]: 4674 mSDtfsCounter, 3410 mSDsluCounter, 23764 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3419 SdHoareTripleChecker+Valid, 26547 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:48,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3419 Valid, 26547 Invalid, 2349 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2347 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-03 02:18:48,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109011 states. [2022-11-03 02:18:53,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109011 to 102689. [2022-11-03 02:18:53,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102689 states, 64554 states have (on average 1.3288719521640797) internal successors, (85784), 67129 states have internal predecessors, (85784), 31592 states have call successors, (31592), 6423 states have call predecessors, (31592), 6542 states have return successors, (32054), 31271 states have call predecessors, (32054), 31591 states have call successors, (32054) [2022-11-03 02:18:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102689 states to 102689 states and 149430 transitions. [2022-11-03 02:18:54,068 INFO L78 Accepts]: Start accepts. Automaton has 102689 states and 149430 transitions. Word has length 415 [2022-11-03 02:18:54,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:54,069 INFO L495 AbstractCegarLoop]: Abstraction has 102689 states and 149430 transitions. [2022-11-03 02:18:54,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-03 02:18:54,070 INFO L276 IsEmpty]: Start isEmpty. Operand 102689 states and 149430 transitions. [2022-11-03 02:18:54,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-11-03 02:18:54,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:54,109 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:18:54,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:18:54,109 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:54,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:54,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1263130037, now seen corresponding path program 1 times [2022-11-03 02:18:54,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:54,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997338198] [2022-11-03 02:18:54,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:54,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:55,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2200 trivial. 0 not checked. [2022-11-03 02:18:55,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:55,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997338198] [2022-11-03 02:18:55,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997338198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:55,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:55,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:18:55,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101037265] [2022-11-03 02:18:55,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:55,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:18:55,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:55,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:18:55,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:18:55,748 INFO L87 Difference]: Start difference. First operand 102689 states and 149430 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-03 02:18:57,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:03,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:03,246 INFO L93 Difference]: Finished difference Result 157395 states and 228910 transitions. [2022-11-03 02:19:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:19:03,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 419 [2022-11-03 02:19:03,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:03,845 INFO L225 Difference]: With dead ends: 157395 [2022-11-03 02:19:03,846 INFO L226 Difference]: Without dead ends: 54409 [2022-11-03 02:19:04,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:19:04,192 INFO L413 NwaCegarLoop]: 3201 mSDtfsCounter, 6 mSDsluCounter, 10456 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 12801 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:04,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 12801 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1155 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 02:19:04,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54409 states. [2022-11-03 02:19:06,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54409 to 54361. [2022-11-03 02:19:06,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54361 states, 34177 states have (on average 1.3279983614711648) internal successors, (45387), 35519 states have internal predecessors, (45387), 16722 states have call successors, (16722), 3400 states have call predecessors, (16722), 3461 states have return successors, (16939), 16567 states have call predecessors, (16939), 16721 states have call successors, (16939) [2022-11-03 02:19:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54361 states to 54361 states and 79048 transitions. [2022-11-03 02:19:06,858 INFO L78 Accepts]: Start accepts. Automaton has 54361 states and 79048 transitions. Word has length 419 [2022-11-03 02:19:06,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:06,859 INFO L495 AbstractCegarLoop]: Abstraction has 54361 states and 79048 transitions. [2022-11-03 02:19:06,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-03 02:19:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand 54361 states and 79048 transitions. [2022-11-03 02:19:06,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-11-03 02:19:06,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:06,880 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 02:19:06,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:19:06,881 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:06,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:06,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1149185990, now seen corresponding path program 1 times [2022-11-03 02:19:06,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:06,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191669863] [2022-11-03 02:19:06,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:06,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat