./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--scsi--ips.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:44:39,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:44:39,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:44:39,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:44:39,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:44:39,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:44:39,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:44:39,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:44:39,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:44:39,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:44:39,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:44:39,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:44:39,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:44:39,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:44:39,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:44:39,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:44:39,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:44:39,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:44:39,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:44:39,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:44:39,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:44:39,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:44:39,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:44:39,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:44:39,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:44:39,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:44:39,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:44:39,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:44:39,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:44:39,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:44:39,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:44:39,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:44:39,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:44:39,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:44:39,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:44:39,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:44:39,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:44:39,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:44:39,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:44:39,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:44:39,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:44:39,711 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:44:39,748 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:44:39,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:44:39,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:44:39,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:44:39,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:44:39,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:44:39,750 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:44:39,754 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:44:39,754 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:44:39,754 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:44:39,756 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:44:39,756 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:44:39,756 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:44:39,756 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:44:39,757 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:44:39,757 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:44:39,757 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:44:39,757 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:44:39,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:44:39,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:44:39,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:44:39,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:44:39,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:44:39,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:44:39,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:44:39,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:44:39,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:44:39,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:44:39,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:44:39,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:44:39,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:44:39,763 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:44:39,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:44:39,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:44:39,764 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:44:39,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:44:39,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:44:39,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:44:39,764 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_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a [2022-11-23 14:44:40,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:44:40,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:44:40,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:44:40,083 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:44:40,084 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:44:40,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2022-11-23 14:44:43,101 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:44:43,789 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:44:43,790 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2022-11-23 14:44:43,842 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/data/b57b20f52/518050ae077b417f94e0c57944d152e8/FLAG9757f8cb8 [2022-11-23 14:44:43,862 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/data/b57b20f52/518050ae077b417f94e0c57944d152e8 [2022-11-23 14:44:43,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:44:43,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:44:43,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:44:43,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:44:43,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:44:43,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:43" (1/1) ... [2022-11-23 14:44:43,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ef9a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:43, skipping insertion in model container [2022-11-23 14:44:43,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:43" (1/1) ... [2022-11-23 14:44:43,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:44:44,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:44:46,967 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i[368085,368098] [2022-11-23 14:44:47,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:44:47,102 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:44:48,071 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i[368085,368098] [2022-11-23 14:44:48,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:44:48,249 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:44:48,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48 WrapperNode [2022-11-23 14:44:48,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:44:48,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:44:48,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:44:48,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:44:48,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:48,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:48,679 INFO L138 Inliner]: procedures = 329, calls = 4504, calls flagged for inlining = 148, calls inlined = 145, statements flattened = 9045 [2022-11-23 14:44:48,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:44:48,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:44:48,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:44:48,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:44:48,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:48,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:48,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:48,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:49,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:49,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:49,246 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:49,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:49,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:44:49,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:44:49,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:44:49,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:44:49,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (1/1) ... [2022-11-23 14:44:49,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:44:49,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:49,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:44:49,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28ea61b6-7488-422e-91a6-30698e493bb6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:44:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure ips_detect [2022-11-23 14:44:49,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_detect [2022-11-23 14:44:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure ips_done [2022-11-23 14:44:49,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_done [2022-11-23 14:44:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_copp [2022-11-23 14:44:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_copp [2022-11-23 14:44:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure ips_eh_abort [2022-11-23 14:44:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_eh_abort [2022-11-23 14:44:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-23 14:44:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-23 14:44:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:44:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:44:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 14:44:49,432 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 14:44:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:44:49,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:44:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_cmd [2022-11-23 14:44:49,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_cmd [2022-11-23 14:44:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2022-11-23 14:44:49,433 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2022-11-23 14:44:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:44:49,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:44:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure ips_allocatescbs [2022-11-23 14:44:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_allocatescbs [2022-11-23 14:44:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure do_ipsintr [2022-11-23 14:44:49,435 INFO L138 BoogieDeclarations]: Found implementation of procedure do_ipsintr [2022-11-23 14:44:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_copperhead [2022-11-23 14:44:49,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_copperhead [2022-11-23 14:44:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-23 14:44:49,436 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-23 14:44:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure le32_add_cpu [2022-11-23 14:44:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure le32_add_cpu [2022-11-23 14:44:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 14:44:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 14:44:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure ips_freescb [2022-11-23 14:44:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_freescb [2022-11-23 14:44:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-23 14:44:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-23 14:44:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure ips_free_flash_copperhead [2022-11-23 14:44:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_free_flash_copperhead [2022-11-23 14:44:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:44:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:44:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure ips_isintr_morpheus [2022-11-23 14:44:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_isintr_morpheus [2022-11-23 14:44:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_scb_head [2022-11-23 14:44:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_scb_head [2022-11-23 14:44:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure ips_slave_configure [2022-11-23 14:44:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_slave_configure [2022-11-23 14:44:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 14:44:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 14:44:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-23 14:44:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-23 14:44:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_5 [2022-11-23 14:44:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_5 [2022-11-23 14:44:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-23 14:44:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-23 14:44:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure ips_putq_scb_head [2022-11-23 14:44:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_putq_scb_head [2022-11-23 14:44:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 14:44:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 14:44:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure ips_hainit [2022-11-23 14:44:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_hainit [2022-11-23 14:44:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 14:44:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 14:44:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:44:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:44:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-11-23 14:44:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-11-23 14:44:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:44:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:44:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure ips_wait [2022-11-23 14:44:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_wait [2022-11-23 14:44:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2022-11-23 14:44:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2022-11-23 14:44:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure ips_register_scsi [2022-11-23 14:44:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_register_scsi [2022-11-23 14:44:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_id [2022-11-23 14:44:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_id [2022-11-23 14:44:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure ips_readwrite_page5 [2022-11-23 14:44:49,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_readwrite_page5 [2022-11-23 14:44:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-23 14:44:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-23 14:44:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flush_and_reset [2022-11-23 14:44:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flush_and_reset [2022-11-23 14:44:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_wait [2022-11-23 14:44:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_wait [2022-11-23 14:44:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_wait [2022-11-23 14:44:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_wait [2022-11-23 14:44:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_morpheus [2022-11-23 14:44:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_morpheus [2022-11-23 14:44:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~uint32_t~0~X~~uint32_t~0~TO~int [2022-11-23 14:44:49,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~uint32_t~0~X~~uint32_t~0~TO~int [2022-11-23 14:44:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:44:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure touch_nmi_watchdog [2022-11-23 14:44:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_nmi_watchdog [2022-11-23 14:44:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure ips_online [2022-11-23 14:44:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_online [2022-11-23 14:44:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-23 14:44:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-23 14:44:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue_lck [2022-11-23 14:44:49,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue_lck [2022-11-23 14:44:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:44:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-23 14:44:49,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-23 14:44:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-23 14:44:49,454 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-23 14:44:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:44:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:44:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure ips_release [2022-11-23 14:44:49,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_release [2022-11-23 14:44:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-11-23 14:44:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-11-23 14:44:49,459 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-11-23 14:44:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 14:44:49,459 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 14:44:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-23 14:44:49,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-23 14:44:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-23 14:44:49,462 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-23 14:44:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure ips_isinit_morpheus [2022-11-23 14:44:49,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_isinit_morpheus [2022-11-23 14:44:49,468 INFO L130 BoogieDeclarations]: Found specification of procedure ips_next [2022-11-23 14:44:49,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_next [2022-11-23 14:44:49,468 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 14:44:49,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 14:44:49,469 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-23 14:44:49,469 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-23 14:44:49,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:44:49,469 INFO L130 BoogieDeclarations]: Found specification of procedure ips_clear_adapter [2022-11-23 14:44:49,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_clear_adapter [2022-11-23 14:44:49,469 INFO L130 BoogieDeclarations]: Found specification of procedure ips_shift_controllers [2022-11-23 14:44:49,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_shift_controllers [2022-11-23 14:44:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_bios [2022-11-23 14:44:49,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_bios [2022-11-23 14:44:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 14:44:49,470 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 14:44:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_subsystem_parameters [2022-11-23 14:44:49,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_subsystem_parameters [2022-11-23 14:44:49,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:44:49,471 INFO L130 BoogieDeclarations]: Found specification of procedure ips_write_driver_status [2022-11-23 14:44:49,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_write_driver_status [2022-11-23 14:44:49,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:44:49,471 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 14:44:49,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 14:44:49,471 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_copp_head [2022-11-23 14:44:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_copp_head [2022-11-23 14:44:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure ips_free [2022-11-23 14:44:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_free [2022-11-23 14:44:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-11-23 14:44:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-11-23 14:44:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase2 [2022-11-23 14:44:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase2 [2022-11-23 14:44:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_adapter_status [2022-11-23 14:44:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_adapter_status [2022-11-23 14:44:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase1 [2022-11-23 14:44:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase1 [2022-11-23 14:44:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:44:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:44:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure ips_scmd_buf_read [2022-11-23 14:44:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_scmd_buf_read [2022-11-23 14:44:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure ips_abort_init [2022-11-23 14:44:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_abort_init [2022-11-23 14:44:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure ipsintr_done [2022-11-23 14:44:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ipsintr_done [2022-11-23 14:44:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure ips_deallocatescbs [2022-11-23 14:44:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_deallocatescbs [2022-11-23 14:44:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-23 14:44:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-23 14:44:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:44:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:44:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_scb [2022-11-23 14:44:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_scb [2022-11-23 14:44:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure ips_insert_device [2022-11-23 14:44:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_insert_device [2022-11-23 14:44:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_config [2022-11-23 14:44:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_config [2022-11-23 14:44:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_reset [2022-11-23 14:44:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_reset [2022-11-23 14:44:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 14:44:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 14:44:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure ips_usrcmd [2022-11-23 14:44:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_usrcmd [2022-11-23 14:44:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:44:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 14:44:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 14:44:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure ips_make_passthru [2022-11-23 14:44:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_make_passthru [2022-11-23 14:44:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-23 14:44:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-23 14:44:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead_memio [2022-11-23 14:44:49,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead_memio [2022-11-23 14:44:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-11-23 14:44:49,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-11-23 14:44:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_wait_head [2022-11-23 14:44:49,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_wait_head [2022-11-23 14:44:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure ips_eh_reset [2022-11-23 14:44:49,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_eh_reset [2022-11-23 14:44:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure ips_getscb [2022-11-23 14:44:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_getscb [2022-11-23 14:44:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure ips_info [2022-11-23 14:44:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_info [2022-11-23 14:44:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:44:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:44:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-23 14:44:49,482 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-23 14:44:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~uint32_t~0 [2022-11-23 14:44:49,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~uint32_t~0 [2022-11-23 14:44:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure __ips_eh_reset [2022-11-23 14:44:49,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __ips_eh_reset [2022-11-23 14:44:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 14:44:49,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 14:44:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:44:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-23 14:44:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-23 14:44:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure ips_scmd_buf_write [2022-11-23 14:44:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_scmd_buf_write [2022-11-23 14:44:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 14:44:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 14:44:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure ips_fix_ffdc_time [2022-11-23 14:44:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_fix_ffdc_time [2022-11-23 14:44:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2022-11-23 14:44:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2022-11-23 14:44:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:44:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reqsen [2022-11-23 14:44:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reqsen [2022-11-23 14:44:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:44:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:44:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:44:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:44:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-23 14:44:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-23 14:44:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:44:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:44:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-23 14:44:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-23 14:44:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-23 14:44:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-23 14:44:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:44:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:44:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure ips_fill_scb_sg_single [2022-11-23 14:44:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_fill_scb_sg_single [2022-11-23 14:44:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure ips_remove_device [2022-11-23 14:44:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_remove_device [2022-11-23 14:44:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure ips_show_info [2022-11-23 14:44:49,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_show_info [2022-11-23 14:44:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure ips_chkstatus [2022-11-23 14:44:49,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_chkstatus [2022-11-23 14:44:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure ips_is_passthru [2022-11-23 14:44:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_is_passthru [2022-11-23 14:44:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue [2022-11-23 14:44:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue [2022-11-23 14:44:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_morpheus [2022-11-23 14:44:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_morpheus [2022-11-23 14:44:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_time [2022-11-23 14:44:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_time [2022-11-23 14:44:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure ips_biosparam [2022-11-23 14:44:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_biosparam [2022-11-23 14:44:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_channel [2022-11-23 14:44:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_channel [2022-11-23 14:44:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure ips_get_bios_version [2022-11-23 14:44:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_get_bios_version [2022-11-23 14:44:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead [2022-11-23 14:44:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead [2022-11-23 14:44:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 14:44:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 14:44:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:44:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:44:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-23 14:44:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-23 14:44:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 14:44:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 14:44:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-23 14:44:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-23 14:44:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 14:44:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 14:44:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_copperhead [2022-11-23 14:44:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_copperhead [2022-11-23 14:44:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:44:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-23 14:44:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-23 14:44:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-23 14:44:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-23 14:44:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-23 14:44:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-23 14:44:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-23 14:44:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:44:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:44:50,730 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:44:50,734 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:44:52,946 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:50:01,493 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:50:07,328 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:50:07,329 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 14:50:07,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:07 BoogieIcfgContainer [2022-11-23 14:50:07,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:50:07,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:50:07,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:50:07,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:50:07,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:44:43" (1/3) ... [2022-11-23 14:50:07,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4263bacb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:07, skipping insertion in model container [2022-11-23 14:50:07,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:48" (2/3) ... [2022-11-23 14:50:07,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4263bacb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:07, skipping insertion in model container [2022-11-23 14:50:07,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:07" (3/3) ... [2022-11-23 14:50:07,348 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2022-11-23 14:50:07,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:50:07,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:50:07,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:50:07,507 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;@76b841c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:50:07,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:50:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 2528 states, 1661 states have (on average 1.3816977724262491) internal successors, (2295), 1780 states have internal predecessors, (2295), 738 states have call successors, (738), 134 states have call predecessors, (738), 133 states have return successors, (729), 717 states have call predecessors, (729), 729 states have call successors, (729) [2022-11-23 14:50:07,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-23 14:50:07,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:07,544 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:07,545 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:07,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:07,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2018844585, now seen corresponding path program 1 times [2022-11-23 14:50:07,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:07,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469121084] [2022-11-23 14:50:07,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:07,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:09,713 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-23 14:50:09,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:09,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469121084] [2022-11-23 14:50:09,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469121084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:09,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:09,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:50:09,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728065947] [2022-11-23 14:50:09,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:09,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:50:09,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:50:09,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:50:09,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:50:09,774 INFO L87 Difference]: Start difference. First operand has 2528 states, 1661 states have (on average 1.3816977724262491) internal successors, (2295), 1780 states have internal predecessors, (2295), 738 states have call successors, (738), 134 states have call predecessors, (738), 133 states have return successors, (729), 717 states have call predecessors, (729), 729 states have call successors, (729) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-23 14:50:11,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:14,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:16,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:19,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:20,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:23,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:25,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:27,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:30,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:32,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:34,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:38,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:40,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:41,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:43,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:43,579 INFO L93 Difference]: Finished difference Result 7360 states and 11194 transitions. [2022-11-23 14:50:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:50:43,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2022-11-23 14:50:43,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:43,666 INFO L225 Difference]: With dead ends: 7360 [2022-11-23 14:50:43,666 INFO L226 Difference]: Without dead ends: 4812 [2022-11-23 14:50:43,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:50:43,713 INFO L413 NwaCegarLoop]: 4805 mSDtfsCounter, 3466 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3477 SdHoareTripleChecker+Valid, 8200 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:43,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3477 Valid, 8200 Invalid, 723 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 710 Invalid, 9 Unknown, 0 Unchecked, 33.3s Time] [2022-11-23 14:50:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2022-11-23 14:50:44,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4806. [2022-11-23 14:50:44,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 3151 states have (on average 1.3719454141542367) internal successors, (4323), 3356 states have internal predecessors, (4323), 1395 states have call successors, (1395), 260 states have call predecessors, (1395), 259 states have return successors, (1402), 1369 states have call predecessors, (1402), 1394 states have call successors, (1402) [2022-11-23 14:50:44,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 7120 transitions. [2022-11-23 14:50:44,202 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 7120 transitions. Word has length 144 [2022-11-23 14:50:44,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:44,207 INFO L495 AbstractCegarLoop]: Abstraction has 4806 states and 7120 transitions. [2022-11-23 14:50:44,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-23 14:50:44,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 7120 transitions. [2022-11-23 14:50:44,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-23 14:50:44,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:44,231 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 14:50:44,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:50:44,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:44,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:44,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1185627857, now seen corresponding path program 1 times [2022-11-23 14:50:44,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:44,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935707796] [2022-11-23 14:50:44,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:44,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:45,925 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-11-23 14:50:45,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:45,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935707796] [2022-11-23 14:50:45,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935707796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:45,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:45,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:50:45,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339290426] [2022-11-23 14:50:45,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:45,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:50:45,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:50:45,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:50:45,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:50:45,929 INFO L87 Difference]: Start difference. First operand 4806 states and 7120 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-23 14:50:48,064 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 [] [2022-11-23 14:50:51,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:53,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:54,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:56,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:50:59,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:01,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:03,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:07,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:09,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:15,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:19,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:21,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:24,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:26,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:28,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:51:28,904 INFO L93 Difference]: Finished difference Result 9587 states and 14204 transitions. [2022-11-23 14:51:28,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:51:28,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 167 [2022-11-23 14:51:28,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:51:28,948 INFO L225 Difference]: With dead ends: 9587 [2022-11-23 14:51:28,949 INFO L226 Difference]: Without dead ends: 4800 [2022-11-23 14:51:28,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:51:28,986 INFO L413 NwaCegarLoop]: 3362 mSDtfsCounter, 1 mSDsluCounter, 6722 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 1 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10084 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:51:28,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10084 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 933 Invalid, 12 Unknown, 0 Unchecked, 42.6s Time] [2022-11-23 14:51:28,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4800 states. [2022-11-23 14:51:29,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4800 to 4800. [2022-11-23 14:51:29,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4800 states, 3147 states have (on average 1.3717826501429933) internal successors, (4317), 3352 states have internal predecessors, (4317), 1394 states have call successors, (1394), 259 states have call predecessors, (1394), 258 states have return successors, (1401), 1368 states have call predecessors, (1401), 1393 states have call successors, (1401) [2022-11-23 14:51:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4800 states to 4800 states and 7112 transitions. [2022-11-23 14:51:29,223 INFO L78 Accepts]: Start accepts. Automaton has 4800 states and 7112 transitions. Word has length 167 [2022-11-23 14:51:29,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:51:29,225 INFO L495 AbstractCegarLoop]: Abstraction has 4800 states and 7112 transitions. [2022-11-23 14:51:29,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-23 14:51:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4800 states and 7112 transitions. [2022-11-23 14:51:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-23 14:51:29,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:51:29,238 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:51:29,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:51:29,239 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:51:29,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:51:29,248 INFO L85 PathProgramCache]: Analyzing trace with hash -512377335, now seen corresponding path program 1 times [2022-11-23 14:51:29,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:51:29,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277875162] [2022-11-23 14:51:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:29,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:51:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:51:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-23 14:51:30,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:51:30,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277875162] [2022-11-23 14:51:30,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277875162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:51:30,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:51:30,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:51:30,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299695604] [2022-11-23 14:51:30,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:51:30,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:51:30,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:51:30,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:51:30,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:51:30,753 INFO L87 Difference]: Start difference. First operand 4800 states and 7112 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:51:32,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:35,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:37,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:40,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:42,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:43,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:46,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:49,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:53,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:56,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:51:59,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:01,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:03,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:03,528 INFO L93 Difference]: Finished difference Result 14296 states and 21193 transitions. [2022-11-23 14:52:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:52:03,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 173 [2022-11-23 14:52:03,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:03,606 INFO L225 Difference]: With dead ends: 14296 [2022-11-23 14:52:03,606 INFO L226 Difference]: Without dead ends: 9523 [2022-11-23 14:52:03,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:52:03,641 INFO L413 NwaCegarLoop]: 4304 mSDtfsCounter, 3567 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3578 SdHoareTripleChecker+Valid, 7656 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:03,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3578 Valid, 7656 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 670 Invalid, 8 Unknown, 0 Unchecked, 32.4s Time] [2022-11-23 14:52:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2022-11-23 14:52:04,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 9514. [2022-11-23 14:52:04,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9514 states, 6235 states have (on average 1.3722534081796312) internal successors, (8556), 6647 states have internal predecessors, (8556), 2764 states have call successors, (2764), 515 states have call predecessors, (2764), 514 states have return successors, (2788), 2711 states have call predecessors, (2788), 2763 states have call successors, (2788) [2022-11-23 14:52:04,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9514 states to 9514 states and 14108 transitions. [2022-11-23 14:52:04,317 INFO L78 Accepts]: Start accepts. Automaton has 9514 states and 14108 transitions. Word has length 173 [2022-11-23 14:52:04,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:04,318 INFO L495 AbstractCegarLoop]: Abstraction has 9514 states and 14108 transitions. [2022-11-23 14:52:04,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:52:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 9514 states and 14108 transitions. [2022-11-23 14:52:04,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-23 14:52:04,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:04,330 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:52:04,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:52:04,331 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:04,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:04,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1585787815, now seen corresponding path program 1 times [2022-11-23 14:52:04,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:04,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247017882] [2022-11-23 14:52:04,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:04,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:05,551 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-23 14:52:05,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:05,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247017882] [2022-11-23 14:52:05,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247017882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:05,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:05,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:52:05,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653569166] [2022-11-23 14:52:05,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:05,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:52:05,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:05,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:52:05,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:52:05,555 INFO L87 Difference]: Start difference. First operand 9514 states and 14108 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:52:07,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:10,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:12,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:13,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:15,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:17,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:19,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:20,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:22,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:28,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:32,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:34,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:37,334 INFO L93 Difference]: Finished difference Result 28102 states and 42536 transitions. [2022-11-23 14:52:37,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:52:37,334 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 179 [2022-11-23 14:52:37,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:37,493 INFO L225 Difference]: With dead ends: 28102 [2022-11-23 14:52:37,494 INFO L226 Difference]: Without dead ends: 18615 [2022-11-23 14:52:37,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:52:37,556 INFO L413 NwaCegarLoop]: 4902 mSDtfsCounter, 3572 mSDsluCounter, 3404 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3577 SdHoareTripleChecker+Valid, 8306 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:37,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3577 Valid, 8306 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 783 Invalid, 7 Unknown, 0 Unchecked, 31.1s Time] [2022-11-23 14:52:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18615 states. [2022-11-23 14:52:38,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18615 to 18557. [2022-11-23 14:52:38,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18557 states, 12151 states have (on average 1.3692700189284832) internal successors, (16638), 12963 states have internal predecessors, (16638), 5395 states have call successors, (5395), 1007 states have call predecessors, (5395), 1010 states have return successors, (6351), 5298 states have call predecessors, (6351), 5394 states have call successors, (6351) [2022-11-23 14:52:38,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18557 states to 18557 states and 28384 transitions. [2022-11-23 14:52:38,788 INFO L78 Accepts]: Start accepts. Automaton has 18557 states and 28384 transitions. Word has length 179 [2022-11-23 14:52:38,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:38,789 INFO L495 AbstractCegarLoop]: Abstraction has 18557 states and 28384 transitions. [2022-11-23 14:52:38,789 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:52:38,789 INFO L276 IsEmpty]: Start isEmpty. Operand 18557 states and 28384 transitions. [2022-11-23 14:52:38,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-23 14:52:38,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:38,799 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 14:52:38,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:52:38,799 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:38,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:38,799 INFO L85 PathProgramCache]: Analyzing trace with hash 423411874, now seen corresponding path program 1 times [2022-11-23 14:52:38,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:38,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755069576] [2022-11-23 14:52:38,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:38,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:40,173 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-23 14:52:40,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:40,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755069576] [2022-11-23 14:52:40,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755069576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:40,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:40,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:52:40,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301725657] [2022-11-23 14:52:40,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:40,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:52:40,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:40,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:52:40,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:52:40,175 INFO L87 Difference]: Start difference. First operand 18557 states and 28384 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-23 14:52:42,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:45,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:47,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:49,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:51,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:52,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:54,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:57,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:59,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:02,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:05,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:08,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:09,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:53:09,043 INFO L93 Difference]: Finished difference Result 37199 states and 58720 transitions. [2022-11-23 14:53:09,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:53:09,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 178 [2022-11-23 14:53:09,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:53:09,191 INFO L225 Difference]: With dead ends: 37199 [2022-11-23 14:53:09,192 INFO L226 Difference]: Without dead ends: 18669 [2022-11-23 14:53:09,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:53:09,343 INFO L413 NwaCegarLoop]: 3358 mSDtfsCounter, 13 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 6710 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:53:09,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 6710 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 624 Invalid, 8 Unknown, 0 Unchecked, 28.1s Time] [2022-11-23 14:53:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18669 states. [2022-11-23 14:53:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18669 to 18621. [2022-11-23 14:53:10,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18621 states, 12203 states have (on average 1.369663197574367) internal successors, (16714), 13019 states have internal predecessors, (16714), 5403 states have call successors, (5403), 1007 states have call predecessors, (5403), 1014 states have return successors, (6363), 5306 states have call predecessors, (6363), 5402 states have call successors, (6363) [2022-11-23 14:53:10,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18621 states to 18621 states and 28480 transitions. [2022-11-23 14:53:10,662 INFO L78 Accepts]: Start accepts. Automaton has 18621 states and 28480 transitions. Word has length 178 [2022-11-23 14:53:10,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:53:10,664 INFO L495 AbstractCegarLoop]: Abstraction has 18621 states and 28480 transitions. [2022-11-23 14:53:10,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-23 14:53:10,665 INFO L276 IsEmpty]: Start isEmpty. Operand 18621 states and 28480 transitions. [2022-11-23 14:53:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-23 14:53:10,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:53:10,676 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 14:53:10,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:53:10,676 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:53:10,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:53:10,677 INFO L85 PathProgramCache]: Analyzing trace with hash -834499090, now seen corresponding path program 1 times [2022-11-23 14:53:10,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:53:10,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015276205] [2022-11-23 14:53:10,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:53:10,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:53:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:53:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-23 14:53:12,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:53:12,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015276205] [2022-11-23 14:53:12,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015276205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:53:12,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:53:12,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:53:12,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456100759] [2022-11-23 14:53:12,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:53:12,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:53:12,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:53:12,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:53:12,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:53:12,664 INFO L87 Difference]: Start difference. First operand 18621 states and 28480 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:53:14,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:17,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:19,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:22,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:25,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:29,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:34,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:36,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:38,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:41,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:43,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:45,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:45,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:53:45,971 INFO L93 Difference]: Finished difference Result 36194 states and 58612 transitions. [2022-11-23 14:53:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:53:45,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 180 [2022-11-23 14:53:45,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:53:46,329 INFO L225 Difference]: With dead ends: 36194 [2022-11-23 14:53:46,329 INFO L226 Difference]: Without dead ends: 36191 [2022-11-23 14:53:46,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:53:46,352 INFO L413 NwaCegarLoop]: 4459 mSDtfsCounter, 3503 mSDsluCounter, 3400 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3505 SdHoareTripleChecker+Valid, 7859 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:53:46,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3505 Valid, 7859 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 656 Invalid, 8 Unknown, 0 Unchecked, 32.2s Time] [2022-11-23 14:53:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36191 states. [2022-11-23 14:53:48,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36191 to 35869. [2022-11-23 14:53:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35869 states, 23566 states have (on average 1.3718492743783417) internal successors, (32329), 25188 states have internal predecessors, (32329), 10345 states have call successors, (10345), 1936 states have call predecessors, (10345), 1957 states have return successors, (15397), 10168 states have call predecessors, (15397), 10344 states have call successors, (15397) [2022-11-23 14:53:48,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35869 states to 35869 states and 58071 transitions. [2022-11-23 14:53:48,724 INFO L78 Accepts]: Start accepts. Automaton has 35869 states and 58071 transitions. Word has length 180 [2022-11-23 14:53:48,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:53:48,725 INFO L495 AbstractCegarLoop]: Abstraction has 35869 states and 58071 transitions. [2022-11-23 14:53:48,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:53:48,726 INFO L276 IsEmpty]: Start isEmpty. Operand 35869 states and 58071 transitions. [2022-11-23 14:53:48,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-23 14:53:48,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:53:48,792 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:53:48,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:53:48,793 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:53:48,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:53:48,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1780032502, now seen corresponding path program 1 times [2022-11-23 14:53:48,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:53:48,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880198692] [2022-11-23 14:53:48,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:53:48,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:53:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:53:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-23 14:53:51,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:53:51,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880198692] [2022-11-23 14:53:51,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880198692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:53:51,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:53:51,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:53:51,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481415387] [2022-11-23 14:53:51,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:53:51,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:53:51,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:53:51,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:53:51,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:53:51,039 INFO L87 Difference]: Start difference. First operand 35869 states and 58071 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-23 14:53:53,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:57,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:59,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:01,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:03,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:04,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:06,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:07,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:10,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:12,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:14,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:18,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:24,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:30,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:37,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:40,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:44,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:44,346 INFO L93 Difference]: Finished difference Result 107454 states and 178983 transitions. [2022-11-23 14:54:44,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:54:44,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 213 [2022-11-23 14:54:44,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:45,172 INFO L225 Difference]: With dead ends: 107454 [2022-11-23 14:54:45,173 INFO L226 Difference]: Without dead ends: 71612 [2022-11-23 14:54:45,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:54:45,573 INFO L413 NwaCegarLoop]: 4944 mSDtfsCounter, 3536 mSDsluCounter, 13321 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 7 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3541 SdHoareTripleChecker+Valid, 18265 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:45,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3541 Valid, 18265 Invalid, 1563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1545 Invalid, 11 Unknown, 0 Unchecked, 50.0s Time] [2022-11-23 14:54:45,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71612 states. [2022-11-23 14:54:49,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71612 to 71421. [2022-11-23 14:54:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71421 states, 46942 states have (on average 1.371415789697925) internal successors, (64377), 50248 states have internal predecessors, (64377), 20545 states have call successors, (20545), 3864 states have call predecessors, (20545), 3933 states have return successors, (35677), 20124 states have call predecessors, (35677), 20544 states have call successors, (35677) [2022-11-23 14:54:50,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71421 states to 71421 states and 120599 transitions. [2022-11-23 14:54:50,878 INFO L78 Accepts]: Start accepts. Automaton has 71421 states and 120599 transitions. Word has length 213 [2022-11-23 14:54:50,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:50,879 INFO L495 AbstractCegarLoop]: Abstraction has 71421 states and 120599 transitions. [2022-11-23 14:54:50,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-23 14:54:50,880 INFO L276 IsEmpty]: Start isEmpty. Operand 71421 states and 120599 transitions. [2022-11-23 14:54:51,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-23 14:54:51,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:51,268 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:51,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:54:51,269 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:51,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:51,269 INFO L85 PathProgramCache]: Analyzing trace with hash 957269226, now seen corresponding path program 1 times [2022-11-23 14:54:51,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:51,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168116388] [2022-11-23 14:54:51,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:51,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-23 14:54:53,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:53,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168116388] [2022-11-23 14:54:53,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168116388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:54:53,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:54:53,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:54:53,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978494485] [2022-11-23 14:54:53,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:54:53,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:54:53,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:54:53,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:54:53,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:54:53,186 INFO L87 Difference]: Start difference. First operand 71421 states and 120599 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-23 14:54:55,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:59,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:01,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:03,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:04,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:07,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:09,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:10,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:13,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:17,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:20,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:55:29,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:31,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:33,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:35,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:45,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:47,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:49,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:55:51,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:55:51,766 INFO L93 Difference]: Finished difference Result 176334 states and 299295 transitions. [2022-11-23 14:55:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:55:51,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 214 [2022-11-23 14:55:51,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:55:52,773 INFO L225 Difference]: With dead ends: 176334 [2022-11-23 14:55:52,774 INFO L226 Difference]: Without dead ends: 107260 [2022-11-23 14:55:53,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:55:53,514 INFO L413 NwaCegarLoop]: 5090 mSDtfsCounter, 3531 mSDsluCounter, 13611 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 7 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 18701 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:55:53,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 18701 Invalid, 1624 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1606 Invalid, 11 Unknown, 0 Unchecked, 52.9s Time] [2022-11-23 14:55:53,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107260 states. [2022-11-23 14:55:58,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107260 to 106973. [2022-11-23 14:55:58,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106973 states, 70350 states have (on average 1.3711016346837241) internal successors, (96457), 75244 states have internal predecessors, (96457), 30729 states have call successors, (30729), 5792 states have call predecessors, (30729), 5893 states have return successors, (55781), 30144 states have call predecessors, (55781), 30728 states have call successors, (55781) [2022-11-23 14:56:00,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106973 states to 106973 states and 182967 transitions. [2022-11-23 14:56:00,142 INFO L78 Accepts]: Start accepts. Automaton has 106973 states and 182967 transitions. Word has length 214 [2022-11-23 14:56:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:56:00,143 INFO L495 AbstractCegarLoop]: Abstraction has 106973 states and 182967 transitions. [2022-11-23 14:56:00,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-23 14:56:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 106973 states and 182967 transitions. [2022-11-23 14:56:00,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-23 14:56:00,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:56:00,210 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:56:00,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:56:00,211 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:56:00,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:56:00,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2081135457, now seen corresponding path program 1 times [2022-11-23 14:56:00,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:56:00,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122182116] [2022-11-23 14:56:00,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:56:00,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:56:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:56:04,167 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-23 14:56:04,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:56:04,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122182116] [2022-11-23 14:56:04,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122182116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:56:04,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:56:04,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:56:04,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321295666] [2022-11-23 14:56:04,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:56:04,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:56:04,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:56:04,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:56:04,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:56:04,170 INFO L87 Difference]: Start difference. First operand 106973 states and 182967 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:56:06,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:09,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:11,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:14,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:16,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:20,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:25,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:29,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:33,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:36,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:37,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:56:37,382 INFO L93 Difference]: Finished difference Result 125163 states and 223702 transitions. [2022-11-23 14:56:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:56:37,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 217 [2022-11-23 14:56:37,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:56:38,720 INFO L225 Difference]: With dead ends: 125163 [2022-11-23 14:56:38,720 INFO L226 Difference]: Without dead ends: 125160 [2022-11-23 14:56:38,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:56:38,785 INFO L413 NwaCegarLoop]: 4353 mSDtfsCounter, 3476 mSDsluCounter, 3400 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3481 SdHoareTripleChecker+Valid, 7753 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:56:38,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3481 Valid, 7753 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 643 Invalid, 8 Unknown, 0 Unchecked, 29.3s Time] [2022-11-23 14:56:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125160 states. [2022-11-23 14:56:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125160 to 124246. [2022-11-23 14:56:45,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124246 states, 81730 states have (on average 1.3714670255720054) internal successors, (112090), 87438 states have internal predecessors, (112090), 35672 states have call successors, (35672), 6720 states have call predecessors, (35672), 6843 states have return successors, (74264), 35007 states have call predecessors, (74264), 35671 states have call successors, (74264) [2022-11-23 14:56:47,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124246 states to 124246 states and 222026 transitions. [2022-11-23 14:56:47,183 INFO L78 Accepts]: Start accepts. Automaton has 124246 states and 222026 transitions. Word has length 217 [2022-11-23 14:56:47,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:56:47,184 INFO L495 AbstractCegarLoop]: Abstraction has 124246 states and 222026 transitions. [2022-11-23 14:56:47,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:56:47,184 INFO L276 IsEmpty]: Start isEmpty. Operand 124246 states and 222026 transitions. [2022-11-23 14:56:47,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-23 14:56:47,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:56:47,290 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:56:47,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:56:47,291 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:56:47,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:56:47,292 INFO L85 PathProgramCache]: Analyzing trace with hash -946099647, now seen corresponding path program 1 times [2022-11-23 14:56:47,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:56:47,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026305080] [2022-11-23 14:56:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:56:47,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:56:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:56:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-23 14:56:49,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:56:49,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026305080] [2022-11-23 14:56:49,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026305080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:56:49,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:56:49,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:56:49,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438059967] [2022-11-23 14:56:49,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:56:49,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:56:49,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:56:49,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:56:49,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:56:49,504 INFO L87 Difference]: Start difference. First operand 124246 states and 222026 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-23 14:56:51,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:55,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:57,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:56:59,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:02,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:04,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:05,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:09,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:13,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:17,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:57:23,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:27,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:29,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:31,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:33,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:36,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:46,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:49,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:54,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:54,342 INFO L93 Difference]: Finished difference Result 246441 states and 439311 transitions. [2022-11-23 14:57:54,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:57:54,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 215 [2022-11-23 14:57:54,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:55,805 INFO L225 Difference]: With dead ends: 246441 [2022-11-23 14:57:55,805 INFO L226 Difference]: Without dead ends: 124526 [2022-11-23 14:57:56,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:57:56,525 INFO L413 NwaCegarLoop]: 5075 mSDtfsCounter, 3530 mSDsluCounter, 13580 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 7 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3535 SdHoareTripleChecker+Valid, 18655 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:56,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3535 Valid, 18655 Invalid, 1627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1609 Invalid, 11 Unknown, 0 Unchecked, 57.1s Time] [2022-11-23 14:57:56,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124526 states. [2022-11-23 14:58:02,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124526 to 124310. [2022-11-23 14:58:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124310 states, 81794 states have (on average 1.371176369904883) internal successors, (112154), 87486 states have internal predecessors, (112154), 35656 states have call successors, (35656), 6736 states have call predecessors, (35656), 6859 states have return successors, (73896), 35007 states have call predecessors, (73896), 35655 states have call successors, (73896) [2022-11-23 14:58:04,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124310 states to 124310 states and 221706 transitions. [2022-11-23 14:58:04,685 INFO L78 Accepts]: Start accepts. Automaton has 124310 states and 221706 transitions. Word has length 215 [2022-11-23 14:58:04,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:04,686 INFO L495 AbstractCegarLoop]: Abstraction has 124310 states and 221706 transitions. [2022-11-23 14:58:04,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-23 14:58:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 124310 states and 221706 transitions.