./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 --- 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-6b4ec56 [2022-11-20 11:58:51,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:58:51,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:58:51,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:58:51,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:58:51,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:58:51,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:58:51,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:58:51,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:58:51,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:58:51,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:58:51,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:58:51,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:58:51,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:58:51,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:58:51,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:58:51,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:58:51,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:58:51,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:58:51,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:58:51,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:58:51,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:58:51,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:58:51,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:58:51,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:58:51,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:58:51,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:58:51,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:58:51,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:58:51,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:58:51,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:58:51,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:58:51,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:58:51,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:58:51,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:58:51,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:58:51,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:58:51,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:58:51,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:58:51,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:58:51,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:58:51,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:58:51,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:58:51,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:58:51,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:58:51,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:58:51,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:58:51,826 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:58:51,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:58:51,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:58:51,828 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:58:51,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:58:51,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:58:51,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:58:51,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:58:51,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:58:51,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:58:51,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:58:51,832 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:58:51,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:58:51,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:58:51,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:58:51,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:58:51,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:58:51,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:58:51,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:58:51,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:58:51,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:58:51,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:58:51,835 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:58:51,836 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:58:51,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:58:51,836 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_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 [2022-11-20 11:58:52,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:58:52,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:58:52,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:58:52,278 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:58:52,279 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:58:52,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2022-11-20 11:58:56,113 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:58:56,943 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:58:56,944 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2022-11-20 11:58:57,002 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/data/faae84f97/420ebfcc254747449a91c22f6e7713d9/FLAG398f0c444 [2022-11-20 11:58:57,024 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/data/faae84f97/420ebfcc254747449a91c22f6e7713d9 [2022-11-20 11:58:57,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:58:57,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:58:57,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:58:57,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:58:57,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:58:57,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:58:57" (1/1) ... [2022-11-20 11:58:57,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a67f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:57, skipping insertion in model container [2022-11-20 11:58:57,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:58:57" (1/1) ... [2022-11-20 11:58:57,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:58:57,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:58:59,965 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_a25a93d0-8825-44cc-ab36-c859f9d0dc38/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2022-11-20 11:59:00,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:59:00,223 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:59:00,896 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_a25a93d0-8825-44cc-ab36-c859f9d0dc38/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2022-11-20 11:59:00,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:59:01,144 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:59:01,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01 WrapperNode [2022-11-20 11:59:01,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:59:01,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:59:01,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:59:01,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:59:01,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,486 INFO L138 Inliner]: procedures = 389, calls = 2887, calls flagged for inlining = 156, calls inlined = 64, statements flattened = 3287 [2022-11-20 11:59:01,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:59:01,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:59:01,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:59:01,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:59:01,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,720 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:59:01,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:59:01,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:59:01,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:59:01,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (1/1) ... [2022-11-20 11:59:01,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:59:01,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:59:01,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:59:01,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25a93d0-8825-44cc-ab36-c859f9d0dc38/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:59:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure smi_stats_proc_open [2022-11-20 11:59:01,873 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_stats_proc_open [2022-11-20 11:59:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 11:59:01,874 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 11:59:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:59:01,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:59:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_poll [2022-11-20 11:59:01,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_poll [2022-11-20 11:59:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure format_lan_msg [2022-11-20 11:59:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure format_lan_msg [2022-11-20 11:59:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-20 11:59:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-20 11:59:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure copy_event_into_recv_msg [2022-11-20 11:59:01,876 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_event_into_recv_msg [2022-11-20 11:59:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_panic_request_and_wait [2022-11-20 11:59:01,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_panic_request_and_wait [2022-11-20 11:59:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:59:01,877 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:59:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cmd_rcvrs_mutex_of_ipmi_smi [2022-11-20 11:59:01,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cmd_rcvrs_mutex_of_ipmi_smi [2022-11-20 11:59:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-20 11:59:01,878 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-20 11:59:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-11-20 11:59:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-11-20 11:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 11:59:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 11:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure intf_next_seq [2022-11-20 11:59:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_next_seq [2022-11-20 11:59:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:59:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmd_rcvrs_mutex_of_ipmi_smi [2022-11-20 11:59:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmd_rcvrs_mutex_of_ipmi_smi [2022-11-20 11:59:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure PDE [2022-11-20 11:59:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE [2022-11-20 11:59:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 11:59:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 11:59:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 11:59:01,882 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 11:59:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure i_ipmi_request [2022-11-20 11:59:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure i_ipmi_request [2022-11-20 11:59:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-20 11:59:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2022-11-20 11:59:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2022-11-20 11:59:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 11:59:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-20 11:59:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-20 11:59:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:59:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:59:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:59:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure maintenance_mode_update [2022-11-20 11:59:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure maintenance_mode_update [2022-11-20 11:59:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 11:59:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 11:59:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-20 11:59:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-20 11:59:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-20 11:59:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-20 11:59:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:59:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure smi_version_proc_open [2022-11-20 11:59:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_version_proc_open [2022-11-20 11:59:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-20 11:59:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-20 11:59:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:59:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure send_channel_info_cmd [2022-11-20 11:59:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure send_channel_info_cmd [2022-11-20 11:59:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:59:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 11:59:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:59:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:59:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2022-11-20 11:59:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2022-11-20 11:59:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 11:59:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 11:59:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-20 11:59:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-20 11:59:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2022-11-20 11:59:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2022-11-20 11:59:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure is_lan_addr [2022-11-20 11:59:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lan_addr [2022-11-20 11:59:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:59:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:59:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2022-11-20 11:59:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2022-11-20 11:59:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:59:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:59:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-11-20 11:59:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-20 11:59:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-20 11:59:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:59:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:59:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure intf_find_seq [2022-11-20 11:59:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_find_seq [2022-11-20 11:59:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 11:59:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 11:59:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 11:59:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 11:59:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 11:59:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 11:59:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2022-11-20 11:59:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2022-11-20 11:59:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 11:59:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 11:59:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:59:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 11:59:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 11:59:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-11-20 11:59:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-11-20 11:59:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:59:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:59:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure find_cmd_rcvr [2022-11-20 11:59:01,905 INFO L138 BoogieDeclarations]: Found implementation of procedure find_cmd_rcvr [2022-11-20 11:59:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 11:59:01,905 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 11:59:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_init_msghandler [2022-11-20 11:59:01,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_init_msghandler [2022-11-20 11:59:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 11:59:01,906 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 11:59:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2022-11-20 11:59:01,907 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2022-11-20 11:59:01,908 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_recv_msg [2022-11-20 11:59:01,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_recv_msg [2022-11-20 11:59:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-20 11:59:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-20 11:59:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-20 11:59:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-20 11:59:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-11-20 11:59:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-11-20 11:59:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-20 11:59:01,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-20 11:59:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure smi_ipmb_proc_open [2022-11-20 11:59:01,922 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_ipmb_proc_open [2022-11-20 11:59:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:59:01,922 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:59:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:59:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:59:01,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:59:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_addr [2022-11-20 11:59:01,923 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_addr [2022-11-20 11:59:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_bcast_addr [2022-11-20 11:59:01,924 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_bcast_addr [2022-11-20 11:59:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2022-11-20 11:59:01,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2022-11-20 11:59:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 11:59:01,924 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 11:59:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure format_ipmb_msg [2022-11-20 11:59:01,925 INFO L138 BoogieDeclarations]: Found implementation of procedure format_ipmb_msg [2022-11-20 11:59:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-20 11:59:01,925 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-20 11:59:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2022-11-20 11:59:01,926 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2022-11-20 11:59:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-20 11:59:01,926 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-20 11:59:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 11:59:01,926 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 11:59:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 11:59:01,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 11:59:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure ipmb_checksum [2022-11-20 11:59:01,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmb_checksum [2022-11-20 11:59:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2022-11-20 11:59:01,927 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2022-11-20 11:59:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-20 11:59:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-20 11:59:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:59:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2022-11-20 11:59:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2022-11-20 11:59:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-20 11:59:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-20 11:59:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-20 11:59:02,806 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:59:02,812 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:59:13,732 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:59:13,766 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:59:13,767 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:59:13,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:59:13 BoogieIcfgContainer [2022-11-20 11:59:13,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:59:13,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:59:13,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:59:13,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:59:13,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:58:57" (1/3) ... [2022-11-20 11:59:13,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35151bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:59:13, skipping insertion in model container [2022-11-20 11:59:13,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:01" (2/3) ... [2022-11-20 11:59:13,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35151bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:59:13, skipping insertion in model container [2022-11-20 11:59:13,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:59:13" (3/3) ... [2022-11-20 11:59:13,792 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2022-11-20 11:59:13,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:59:13,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:59:13,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:59:13,940 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=PETRI_NET, 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;@37b7fb4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:59:13,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:59:13,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 1239 states, 859 states have (on average 1.369033760186263) internal successors, (1176), 909 states have internal predecessors, (1176), 304 states have call successors, (304), 74 states have call predecessors, (304), 74 states have return successors, (304), 298 states have call predecessors, (304), 304 states have call successors, (304) [2022-11-20 11:59:13,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 11:59:13,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:59:13,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:59:13,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:59:13,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:13,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1393245404, now seen corresponding path program 1 times [2022-11-20 11:59:13,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:13,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566158463] [2022-11-20 11:59:13,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:13,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:14,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:14,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566158463] [2022-11-20 11:59:14,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566158463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:14,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:14,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:59:14,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377801493] [2022-11-20 11:59:14,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:14,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:59:14,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:14,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:59:14,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:59:14,770 INFO L87 Difference]: Start difference. First operand has 1239 states, 859 states have (on average 1.369033760186263) internal successors, (1176), 909 states have internal predecessors, (1176), 304 states have call successors, (304), 74 states have call predecessors, (304), 74 states have return successors, (304), 298 states have call predecessors, (304), 304 states have call successors, (304) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:15,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:59:15,355 INFO L93 Difference]: Finished difference Result 3642 states and 5361 transitions. [2022-11-20 11:59:15,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:59:15,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 11:59:15,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:59:15,411 INFO L225 Difference]: With dead ends: 3642 [2022-11-20 11:59:15,412 INFO L226 Difference]: Without dead ends: 2402 [2022-11-20 11:59:15,433 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 [2022-11-20 11:59:15,437 INFO L413 NwaCegarLoop]: 2836 mSDtfsCounter, 1705 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 4566 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:59:15,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 4566 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:59:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2022-11-20 11:59:15,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2398. [2022-11-20 11:59:15,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 1665 states have (on average 1.3663663663663663) internal successors, (2275), 1752 states have internal predecessors, (2275), 590 states have call successors, (590), 143 states have call predecessors, (590), 142 states have return successors, (580), 568 states have call predecessors, (580), 580 states have call successors, (580) [2022-11-20 11:59:15,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 3445 transitions. [2022-11-20 11:59:15,756 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 3445 transitions. Word has length 16 [2022-11-20 11:59:15,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:59:15,757 INFO L495 AbstractCegarLoop]: Abstraction has 2398 states and 3445 transitions. [2022-11-20 11:59:15,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:59:15,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 3445 transitions. [2022-11-20 11:59:15,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 11:59:15,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:59:15,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:59:15,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:59:15,766 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:59:15,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:15,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1854504654, now seen corresponding path program 1 times [2022-11-20 11:59:15,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:15,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565438636] [2022-11-20 11:59:15,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:15,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:16,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:59:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:16,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:16,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565438636] [2022-11-20 11:59:16,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565438636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:16,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:16,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:59:16,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229726345] [2022-11-20 11:59:16,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:16,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:59:16,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:16,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:59:16,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:59:16,402 INFO L87 Difference]: Start difference. First operand 2398 states and 3445 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:59:35,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:41,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:43,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:44,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:46,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:48,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:50,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:55,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:56,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:59:56,311 INFO L93 Difference]: Finished difference Result 7431 states and 10828 transitions. [2022-11-20 11:59:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:59:56,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-11-20 11:59:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:59:56,350 INFO L225 Difference]: With dead ends: 7431 [2022-11-20 11:59:56,350 INFO L226 Difference]: Without dead ends: 5036 [2022-11-20 11:59:56,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:59:56,365 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 2640 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 8348 mSolverCounterSat, 1406 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 9757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1406 IncrementalHoareTripleChecker+Valid, 8348 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:59:56,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2954 Valid, 1190 Invalid, 9757 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1406 Valid, 8348 Invalid, 3 Unknown, 0 Unchecked, 39.0s Time] [2022-11-20 11:59:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5036 states. [2022-11-20 11:59:56,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5036 to 4728. [2022-11-20 11:59:56,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4728 states, 3290 states have (on average 1.3668693009118542) internal successors, (4497), 3452 states have internal predecessors, (4497), 1155 states have call successors, (1155), 282 states have call predecessors, (1155), 282 states have return successors, (1150), 1123 states have call predecessors, (1150), 1145 states have call successors, (1150) [2022-11-20 11:59:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4728 states to 4728 states and 6802 transitions. [2022-11-20 11:59:56,810 INFO L78 Accepts]: Start accepts. Automaton has 4728 states and 6802 transitions. Word has length 23 [2022-11-20 11:59:56,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:59:56,811 INFO L495 AbstractCegarLoop]: Abstraction has 4728 states and 6802 transitions. [2022-11-20 11:59:56,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:59:56,811 INFO L276 IsEmpty]: Start isEmpty. Operand 4728 states and 6802 transitions. [2022-11-20 11:59:56,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 11:59:56,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:59:56,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:59:56,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:59:56,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:59:56,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:56,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1690190994, now seen corresponding path program 1 times [2022-11-20 11:59:56,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:56,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54839874] [2022-11-20 11:59:56,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:56,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:57,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:59:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:57,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:57,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54839874] [2022-11-20 11:59:57,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54839874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:57,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:57,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:59:57,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837580695] [2022-11-20 11:59:57,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:57,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:59:57,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:57,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:59:57,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:59:57,207 INFO L87 Difference]: Start difference. First operand 4728 states and 6802 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:00:05,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:07,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:12,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:14,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:14,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:14,723 INFO L93 Difference]: Finished difference Result 9553 states and 13879 transitions. [2022-11-20 12:00:14,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:00:14,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-20 12:00:14,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:00:14,763 INFO L225 Difference]: With dead ends: 9553 [2022-11-20 12:00:14,764 INFO L226 Difference]: Without dead ends: 4828 [2022-11-20 12:00:14,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:00:14,798 INFO L413 NwaCegarLoop]: 1403 mSDtfsCounter, 2155 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 575 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2335 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 2847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:00:14,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2335 Valid, 2742 Invalid, 2847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [575 Valid, 2270 Invalid, 2 Unknown, 0 Unchecked, 16.9s Time] [2022-11-20 12:00:14,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2022-11-20 12:00:15,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4540. [2022-11-20 12:00:15,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4540 states, 3144 states have (on average 1.3635496183206106) internal successors, (4287), 3302 states have internal predecessors, (4287), 1121 states have call successors, (1121), 274 states have call predecessors, (1121), 274 states have return successors, (1115), 1088 states have call predecessors, (1115), 1111 states have call successors, (1115) [2022-11-20 12:00:15,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 4540 states and 6523 transitions. [2022-11-20 12:00:15,278 INFO L78 Accepts]: Start accepts. Automaton has 4540 states and 6523 transitions. Word has length 25 [2022-11-20 12:00:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:15,279 INFO L495 AbstractCegarLoop]: Abstraction has 4540 states and 6523 transitions. [2022-11-20 12:00:15,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:00:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 4540 states and 6523 transitions. [2022-11-20 12:00:15,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 12:00:15,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:15,285 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:15,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:00:15,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:15,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1136355247, now seen corresponding path program 1 times [2022-11-20 12:00:15,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:15,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099197425] [2022-11-20 12:00:15,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:15,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:15,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:00:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:15,563 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 12:00:15,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:15,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099197425] [2022-11-20 12:00:15,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099197425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:15,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:15,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:00:15,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040793771] [2022-11-20 12:00:15,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:15,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:00:15,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:15,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:00:15,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:00:15,567 INFO L87 Difference]: Start difference. First operand 4540 states and 6523 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:00:25,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:27,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:29,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:29,576 INFO L93 Difference]: Finished difference Result 4853 states and 7090 transitions. [2022-11-20 12:00:29,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:00:29,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-11-20 12:00:29,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:00:29,605 INFO L225 Difference]: With dead ends: 4853 [2022-11-20 12:00:29,605 INFO L226 Difference]: Without dead ends: 4849 [2022-11-20 12:00:29,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:00:29,609 INFO L413 NwaCegarLoop]: 1245 mSDtfsCounter, 1894 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 532 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:00:29,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 1441 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 1484 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2022-11-20 12:00:29,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2022-11-20 12:00:29,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4562. [2022-11-20 12:00:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4562 states, 3160 states have (on average 1.360126582278481) internal successors, (4298), 3316 states have internal predecessors, (4298), 1119 states have call successors, (1119), 282 states have call predecessors, (1119), 282 states have return successors, (1115), 1088 states have call predecessors, (1115), 1111 states have call successors, (1115) [2022-11-20 12:00:30,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 6532 transitions. [2022-11-20 12:00:30,038 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 6532 transitions. Word has length 35 [2022-11-20 12:00:30,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:30,039 INFO L495 AbstractCegarLoop]: Abstraction has 4562 states and 6532 transitions. [2022-11-20 12:00:30,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:00:30,043 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 6532 transitions. [2022-11-20 12:00:30,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 12:00:30,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:30,046 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:30,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:00:30,047 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:30,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:30,047 INFO L85 PathProgramCache]: Analyzing trace with hash -867928403, now seen corresponding path program 1 times [2022-11-20 12:00:30,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:30,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179180606] [2022-11-20 12:00:30,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:30,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:30,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:00:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:30,324 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 12:00:30,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:30,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179180606] [2022-11-20 12:00:30,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179180606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:30,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:30,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:00:30,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723195445] [2022-11-20 12:00:30,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:30,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:00:30,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:30,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:00:30,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:00:30,328 INFO L87 Difference]: Start difference. First operand 4562 states and 6532 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:00:38,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:40,929 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 [] [2022-11-20 12:00:41,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:41,954 INFO L93 Difference]: Finished difference Result 4849 states and 7082 transitions. [2022-11-20 12:00:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:00:41,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-20 12:00:41,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:00:41,987 INFO L225 Difference]: With dead ends: 4849 [2022-11-20 12:00:41,988 INFO L226 Difference]: Without dead ends: 4846 [2022-11-20 12:00:41,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:00:41,992 INFO L413 NwaCegarLoop]: 1246 mSDtfsCounter, 1915 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 509 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:00:41,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 1424 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1476 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2022-11-20 12:00:42,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4846 states. [2022-11-20 12:00:42,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4846 to 4561. [2022-11-20 12:00:42,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4561 states, 3160 states have (on average 1.3598101265822784) internal successors, (4297), 3315 states have internal predecessors, (4297), 1118 states have call successors, (1118), 282 states have call predecessors, (1118), 282 states have return successors, (1115), 1088 states have call predecessors, (1115), 1111 states have call successors, (1115) [2022-11-20 12:00:42,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4561 states to 4561 states and 6530 transitions. [2022-11-20 12:00:42,489 INFO L78 Accepts]: Start accepts. Automaton has 4561 states and 6530 transitions. Word has length 36 [2022-11-20 12:00:42,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:42,490 INFO L495 AbstractCegarLoop]: Abstraction has 4561 states and 6530 transitions. [2022-11-20 12:00:42,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:00:42,490 INFO L276 IsEmpty]: Start isEmpty. Operand 4561 states and 6530 transitions. [2022-11-20 12:00:42,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 12:00:42,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:42,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:42,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:00:42,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:42,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:42,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1136625964, now seen corresponding path program 1 times [2022-11-20 12:00:42,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:42,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443292349] [2022-11-20 12:00:42,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:42,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:42,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:00:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 12:00:42,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:42,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443292349] [2022-11-20 12:00:42,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443292349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:42,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:42,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:00:42,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908865085] [2022-11-20 12:00:42,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:42,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:00:42,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:42,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:00:42,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:00:42,749 INFO L87 Difference]: Start difference. First operand 4561 states and 6530 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:00:49,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:53,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:55,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:00:57,201 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 [] [2022-11-20 12:00:57,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:57,509 INFO L93 Difference]: Finished difference Result 4848 states and 7080 transitions. [2022-11-20 12:00:57,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:00:57,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-20 12:00:57,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:00:57,544 INFO L225 Difference]: With dead ends: 4848 [2022-11-20 12:00:57,544 INFO L226 Difference]: Without dead ends: 4845 [2022-11-20 12:00:57,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:00:57,549 INFO L413 NwaCegarLoop]: 1243 mSDtfsCounter, 1911 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 508 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:00:57,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 1420 Invalid, 1983 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [508 Valid, 1473 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2022-11-20 12:00:57,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2022-11-20 12:00:57,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 4560. [2022-11-20 12:00:58,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4560 states, 3160 states have (on average 1.3594936708860759) internal successors, (4296), 3314 states have internal predecessors, (4296), 1117 states have call successors, (1117), 282 states have call predecessors, (1117), 282 states have return successors, (1115), 1088 states have call predecessors, (1115), 1111 states have call successors, (1115) [2022-11-20 12:00:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4560 states to 4560 states and 6528 transitions. [2022-11-20 12:00:58,028 INFO L78 Accepts]: Start accepts. Automaton has 4560 states and 6528 transitions. Word has length 37 [2022-11-20 12:00:58,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:58,029 INFO L495 AbstractCegarLoop]: Abstraction has 4560 states and 6528 transitions. [2022-11-20 12:00:58,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:00:58,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4560 states and 6528 transitions. [2022-11-20 12:00:58,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 12:00:58,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:58,031 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:58,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:00:58,032 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:58,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:58,032 INFO L85 PathProgramCache]: Analyzing trace with hash -876310896, now seen corresponding path program 1 times [2022-11-20 12:00:58,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:58,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387295112] [2022-11-20 12:00:58,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:58,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:58,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:00:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 12:00:58,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:58,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387295112] [2022-11-20 12:00:58,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387295112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:58,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:58,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:00:58,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155071594] [2022-11-20 12:00:58,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:58,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:00:58,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:58,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:00:58,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:00:58,241 INFO L87 Difference]: Start difference. First operand 4560 states and 6528 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:01:04,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:01:07,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:01:09,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:01:11,285 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 [] [2022-11-20 12:01:11,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:01:11,563 INFO L93 Difference]: Finished difference Result 4847 states and 7078 transitions. [2022-11-20 12:01:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:01:11,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-20 12:01:11,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:01:11,592 INFO L225 Difference]: With dead ends: 4847 [2022-11-20 12:01:11,592 INFO L226 Difference]: Without dead ends: 4844 [2022-11-20 12:01:11,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:01:11,596 INFO L413 NwaCegarLoop]: 1234 mSDtfsCounter, 1909 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 507 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:01:11,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 1410 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [507 Valid, 1467 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2022-11-20 12:01:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2022-11-20 12:01:12,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4559. [2022-11-20 12:01:12,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4559 states, 3160 states have (on average 1.3591772151898733) internal successors, (4295), 3313 states have internal predecessors, (4295), 1116 states have call successors, (1116), 282 states have call predecessors, (1116), 282 states have return successors, (1115), 1088 states have call predecessors, (1115), 1111 states have call successors, (1115) [2022-11-20 12:01:12,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4559 states to 4559 states and 6526 transitions. [2022-11-20 12:01:12,150 INFO L78 Accepts]: Start accepts. Automaton has 4559 states and 6526 transitions. Word has length 38 [2022-11-20 12:01:12,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:01:12,151 INFO L495 AbstractCegarLoop]: Abstraction has 4559 states and 6526 transitions. [2022-11-20 12:01:12,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:01:12,151 INFO L276 IsEmpty]: Start isEmpty. Operand 4559 states and 6526 transitions. [2022-11-20 12:01:12,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 12:01:12,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:01:12,153 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:01:12,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:01:12,154 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:01:12,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:01:12,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1396473513, now seen corresponding path program 1 times [2022-11-20 12:01:12,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:01:12,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703396728] [2022-11-20 12:01:12,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:01:12,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:01:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:12,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:01:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 12:01:12,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:01:12,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703396728] [2022-11-20 12:01:12,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703396728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:01:12,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:01:12,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:01:12,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991446458] [2022-11-20 12:01:12,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:01:12,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:01:12,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:01:12,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:01:12,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:01:12,386 INFO L87 Difference]: Start difference. First operand 4559 states and 6526 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:01:18,961 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 [] [2022-11-20 12:01:20,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:01:24,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:01:26,910 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 [] [2022-11-20 12:01:27,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:01:27,234 INFO L93 Difference]: Finished difference Result 4846 states and 7076 transitions. [2022-11-20 12:01:27,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:01:27,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-11-20 12:01:27,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:01:27,258 INFO L225 Difference]: With dead ends: 4846 [2022-11-20 12:01:27,258 INFO L226 Difference]: Without dead ends: 4843 [2022-11-20 12:01:27,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:01:27,261 INFO L413 NwaCegarLoop]: 1234 mSDtfsCounter, 1906 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 506 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:01:27,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 1409 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1469 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2022-11-20 12:01:27,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4843 states. [2022-11-20 12:01:27,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4843 to 4558. [2022-11-20 12:01:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4558 states, 3160 states have (on average 1.3588607594936708) internal successors, (4294), 3312 states have internal predecessors, (4294), 1115 states have call successors, (1115), 282 states have call predecessors, (1115), 282 states have return successors, (1115), 1088 states have call predecessors, (1115), 1111 states have call successors, (1115) [2022-11-20 12:01:27,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4558 states to 4558 states and 6524 transitions. [2022-11-20 12:01:27,762 INFO L78 Accepts]: Start accepts. Automaton has 4558 states and 6524 transitions. Word has length 39 [2022-11-20 12:01:27,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:01:27,762 INFO L495 AbstractCegarLoop]: Abstraction has 4558 states and 6524 transitions. [2022-11-20 12:01:27,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:01:27,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4558 states and 6524 transitions. [2022-11-20 12:01:27,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 12:01:27,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:01:27,766 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:01:27,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:01:27,767 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:01:27,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:01:27,767 INFO L85 PathProgramCache]: Analyzing trace with hash -341640589, now seen corresponding path program 1 times [2022-11-20 12:01:27,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:01:27,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647034836] [2022-11-20 12:01:27,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:01:27,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:01:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:27,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:01:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 12:01:27,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:01:27,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647034836] [2022-11-20 12:01:27,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647034836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:01:27,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:01:27,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:01:27,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127751773] [2022-11-20 12:01:27,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:01:27,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:01:27,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:01:27,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:01:27,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:01:27,986 INFO L87 Difference]: Start difference. First operand 4558 states and 6524 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:01:36,741 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 [] [2022-11-20 12:01:38,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:01:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:01:38,436 INFO L93 Difference]: Finished difference Result 4845 states and 7074 transitions. [2022-11-20 12:01:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:01:38,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-11-20 12:01:38,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:01:38,457 INFO L225 Difference]: With dead ends: 4845 [2022-11-20 12:01:38,457 INFO L226 Difference]: Without dead ends: 4842 [2022-11-20 12:01:38,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:01:38,460 INFO L413 NwaCegarLoop]: 1230 mSDtfsCounter, 1903 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:01:38,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 1404 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-20 12:01:38,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4842 states. [2022-11-20 12:01:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4842 to 4557. [2022-11-20 12:01:39,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4557 states, 3160 states have (on average 1.3585443037974683) internal successors, (4293), 3311 states have internal predecessors, (4293), 1114 states have call successors, (1114), 282 states have call predecessors, (1114), 282 states have return successors, (1115), 1088 states have call predecessors, (1115), 1111 states have call successors, (1115) [2022-11-20 12:01:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4557 states to 4557 states and 6522 transitions. [2022-11-20 12:01:39,046 INFO L78 Accepts]: Start accepts. Automaton has 4557 states and 6522 transitions. Word has length 40 [2022-11-20 12:01:39,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:01:39,047 INFO L495 AbstractCegarLoop]: Abstraction has 4557 states and 6522 transitions. [2022-11-20 12:01:39,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:01:39,047 INFO L276 IsEmpty]: Start isEmpty. Operand 4557 states and 6522 transitions. [2022-11-20 12:01:39,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 12:01:39,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:01:39,051 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:01:39,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:01:39,052 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:01:39,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:01:39,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2001553446, now seen corresponding path program 1 times [2022-11-20 12:01:39,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:01:39,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384390601] [2022-11-20 12:01:39,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:01:39,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:01:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:39,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:01:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:39,253 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 12:01:39,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:01:39,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384390601] [2022-11-20 12:01:39,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384390601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:01:39,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:01:39,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:01:39,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316241874] [2022-11-20 12:01:39,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:01:39,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:01:39,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:01:39,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:01:39,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:01:39,256 INFO L87 Difference]: Start difference. First operand 4557 states and 6522 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:01:46,144 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 [] [2022-11-20 12:01:49,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:01:52,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:01:52,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:01:52,536 INFO L93 Difference]: Finished difference Result 4844 states and 7072 transitions. [2022-11-20 12:01:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:01:52,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-11-20 12:01:52,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:01:52,556 INFO L225 Difference]: With dead ends: 4844 [2022-11-20 12:01:52,556 INFO L226 Difference]: Without dead ends: 4841 [2022-11-20 12:01:52,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:01:52,559 INFO L413 NwaCegarLoop]: 1233 mSDtfsCounter, 1896 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 502 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:01:52,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 1408 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 1468 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2022-11-20 12:01:52,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2022-11-20 12:01:53,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4556. [2022-11-20 12:01:53,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4556 states, 3160 states have (on average 1.3582278481012657) internal successors, (4292), 3310 states have internal predecessors, (4292), 1113 states have call successors, (1113), 282 states have call predecessors, (1113), 282 states have return successors, (1115), 1088 states have call predecessors, (1115), 1111 states have call successors, (1115) [2022-11-20 12:01:53,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4556 states to 4556 states and 6520 transitions. [2022-11-20 12:01:53,120 INFO L78 Accepts]: Start accepts. Automaton has 4556 states and 6520 transitions. Word has length 41 [2022-11-20 12:01:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:01:53,120 INFO L495 AbstractCegarLoop]: Abstraction has 4556 states and 6520 transitions. [2022-11-20 12:01:53,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:01:53,121 INFO L276 IsEmpty]: Start isEmpty. Operand 4556 states and 6520 transitions. [2022-11-20 12:01:53,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 12:01:53,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:01:53,123 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:01:53,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:01:53,124 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:01:53,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:01:53,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1919239594, now seen corresponding path program 1 times [2022-11-20 12:01:53,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:01:53,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723856940] [2022-11-20 12:01:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:01:53,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:01:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:53,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:01:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:53,306 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 12:01:53,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:01:53,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723856940] [2022-11-20 12:01:53,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723856940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:01:53,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:01:53,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:01:53,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428782569] [2022-11-20 12:01:53,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:01:53,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:01:53,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:01:53,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:01:53,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:01:53,310 INFO L87 Difference]: Start difference. First operand 4556 states and 6520 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:02:00,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:03,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:05,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:06,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:06,298 INFO L93 Difference]: Finished difference Result 4843 states and 7070 transitions. [2022-11-20 12:02:06,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:02:06,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-11-20 12:02:06,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:06,321 INFO L225 Difference]: With dead ends: 4843 [2022-11-20 12:02:06,321 INFO L226 Difference]: Without dead ends: 4812 [2022-11-20 12:02:06,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:02:06,327 INFO L413 NwaCegarLoop]: 1231 mSDtfsCounter, 1893 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 503 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:06,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 1406 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1467 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2022-11-20 12:02:06,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2022-11-20 12:02:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4527. [2022-11-20 12:02:06,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4527 states, 3137 states have (on average 1.3592604399107429) internal successors, (4264), 3286 states have internal predecessors, (4264), 1108 states have call successors, (1108), 281 states have call predecessors, (1108), 281 states have return successors, (1111), 1084 states have call predecessors, (1111), 1107 states have call successors, (1111) [2022-11-20 12:02:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4527 states to 4527 states and 6483 transitions. [2022-11-20 12:02:06,846 INFO L78 Accepts]: Start accepts. Automaton has 4527 states and 6483 transitions. Word has length 42 [2022-11-20 12:02:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:06,847 INFO L495 AbstractCegarLoop]: Abstraction has 4527 states and 6483 transitions. [2022-11-20 12:02:06,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:02:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 4527 states and 6483 transitions. [2022-11-20 12:02:06,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-20 12:02:06,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:06,857 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:06,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:02:06,858 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:06,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:06,859 INFO L85 PathProgramCache]: Analyzing trace with hash -130821556, now seen corresponding path program 1 times [2022-11-20 12:02:06,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:02:06,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816016087] [2022-11-20 12:02:06,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:06,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:02:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 12:02:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 12:02:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 12:02:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 12:02:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:02:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:02:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 12:02:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 12:02:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 12:02:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:02:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:02:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 12:02:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:07,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:02:07,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:02:07,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816016087] [2022-11-20 12:02:07,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816016087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:02:07,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:02:07,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:02:07,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612458469] [2022-11-20 12:02:07,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:07,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:02:07,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:02:07,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:02:07,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:02:07,326 INFO L87 Difference]: Start difference. First operand 4527 states and 6483 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 12:02:19,670 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 [] [2022-11-20 12:02:24,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:26,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:28,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:30,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:31,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:34,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:34,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:34,423 INFO L93 Difference]: Finished difference Result 8387 states and 12509 transitions. [2022-11-20 12:02:34,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:02:34,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-11-20 12:02:34,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:34,444 INFO L225 Difference]: With dead ends: 8387 [2022-11-20 12:02:34,445 INFO L226 Difference]: Without dead ends: 3863 [2022-11-20 12:02:34,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:02:34,465 INFO L413 NwaCegarLoop]: 1288 mSDtfsCounter, 2317 mSDsluCounter, 3622 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 1706 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2551 SdHoareTripleChecker+Valid, 4910 SdHoareTripleChecker+Invalid, 5600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1706 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:34,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2551 Valid, 4910 Invalid, 5600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1706 Valid, 3889 Invalid, 5 Unknown, 0 Unchecked, 26.3s Time] [2022-11-20 12:02:34,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2022-11-20 12:02:34,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 2751. [2022-11-20 12:02:34,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 1960 states have (on average 1.3826530612244898) internal successors, (2710), 2042 states have internal predecessors, (2710), 621 states have call successors, (621), 163 states have call predecessors, (621), 169 states have return successors, (648), 613 states have call predecessors, (648), 620 states have call successors, (648) [2022-11-20 12:02:34,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 3979 transitions. [2022-11-20 12:02:34,870 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 3979 transitions. Word has length 119 [2022-11-20 12:02:34,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:34,870 INFO L495 AbstractCegarLoop]: Abstraction has 2751 states and 3979 transitions. [2022-11-20 12:02:34,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 12:02:34,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 3979 transitions. [2022-11-20 12:02:34,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 12:02:34,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:34,887 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:34,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:02:34,887 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:34,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:34,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1262052225, now seen corresponding path program 1 times [2022-11-20 12:02:34,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:02:34,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582841231] [2022-11-20 12:02:34,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:34,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:02:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:02:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:02:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 12:02:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-20 12:02:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 12:02:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:02:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:02:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 12:02:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:02:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 12:02:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 12:02:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-20 12:02:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:02:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:35,664 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 12:02:35,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:02:35,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582841231] [2022-11-20 12:02:35,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582841231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:02:35,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:02:35,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:02:35,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953579458] [2022-11-20 12:02:35,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:35,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:02:35,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:02:35,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:02:35,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:02:35,668 INFO L87 Difference]: Start difference. First operand 2751 states and 3979 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (21), 9 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:02:50,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:51,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:52,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:57,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:58,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:03:00,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:03:02,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:03:05,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:03:06,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:03:08,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:03:09,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:03:12,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:03:12,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:03:12,867 INFO L93 Difference]: Finished difference Result 3814 states and 5971 transitions. [2022-11-20 12:03:12,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:03:12,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (21), 9 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2022-11-20 12:03:12,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:03:12,870 INFO L225 Difference]: With dead ends: 3814 [2022-11-20 12:03:12,870 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 12:03:12,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:03:12,891 INFO L413 NwaCegarLoop]: 1152 mSDtfsCounter, 2079 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 5566 mSolverCounterSat, 1672 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 4575 SdHoareTripleChecker+Invalid, 7243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1672 IncrementalHoareTripleChecker+Valid, 5566 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:03:12,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 4575 Invalid, 7243 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1672 Valid, 5566 Invalid, 5 Unknown, 0 Unchecked, 36.4s Time] [2022-11-20 12:03:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 12:03:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 12:03:12,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:03:12,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 12:03:12,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2022-11-20 12:03:12,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:03:12,895 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:03:12,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (21), 9 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:03:12,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:03:12,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 12:03:12,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:03:12,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:03:12,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 12:03:20,489 WARN L233 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:03:29,277 WARN L233 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:03:35,947 WARN L233 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:03:43,616 WARN L233 SmtUtils]: Spent 7.67s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:03:52,685 WARN L233 SmtUtils]: Spent 7.72s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:04:00,104 WARN L233 SmtUtils]: Spent 7.42s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:04:10,299 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:04:16,621 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:04:23,248 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:04:33,286 WARN L233 SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:04:39,905 WARN L233 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:04:49,561 WARN L233 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:04:59,375 WARN L233 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:05:10,977 WARN L233 SmtUtils]: Spent 7.74s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:05:18,052 WARN L233 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:05:26,405 WARN L233 SmtUtils]: Spent 7.02s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:05:32,235 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:05:39,516 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:05:45,598 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:05:52,154 WARN L233 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:05:59,434 WARN L233 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:07:15,569 WARN L233 SmtUtils]: Spent 9.88s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:09:39,748 WARN L233 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:09:49,643 WARN L233 SmtUtils]: Spent 9.89s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:09:57,172 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:10:07,352 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:10:33,361 WARN L233 SmtUtils]: Spent 18.99s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:10:58,578 WARN L233 SmtUtils]: Spent 19.19s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:11:20,288 WARN L233 SmtUtils]: Spent 19.64s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:11:39,042 WARN L233 SmtUtils]: Spent 18.75s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:11:59,849 WARN L233 SmtUtils]: Spent 18.67s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:12:25,944 WARN L233 SmtUtils]: Spent 21.96s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:12:49,739 WARN L233 SmtUtils]: Spent 21.68s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 12:13:19,347 WARN L233 SmtUtils]: Spent 23.16s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)