./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f2c7848ca043d8b9ca4f9ab4b1ce08f583c2bd8d8967a557df683af547558d91 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:20:47,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:20:47,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:20:47,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:20:47,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:20:47,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:20:47,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:20:47,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:20:47,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:20:47,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:20:47,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:20:47,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:20:47,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:20:47,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:20:47,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:20:47,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:20:47,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:20:47,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:20:47,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:20:47,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:20:47,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:20:47,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:20:47,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:20:47,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:20:47,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:20:47,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:20:47,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:20:47,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:20:47,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:20:47,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:20:47,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:20:47,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:20:47,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:20:47,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:20:47,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:20:47,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:20:47,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:20:47,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:20:47,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:20:47,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:20:47,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:20:47,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:20:47,977 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:20:47,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:20:47,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:20:47,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:20:47,979 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:20:47,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:20:47,980 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:20:47,980 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:20:47,980 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:20:47,981 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:20:47,982 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:20:47,982 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:20:47,982 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:20:47,982 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:20:47,982 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:20:47,983 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:20:47,983 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:20:47,983 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:20:47,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:20:47,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:20:47,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:20:47,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:20:47,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:20:47,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:20:47,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:20:47,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:20:47,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:20:47,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:20:47,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:20:47,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:20:47,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:20:47,988 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:20:47,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:20:47,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:20:47,989 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:20:47,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:20:47,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:20:47,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:20:47,990 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_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2c7848ca043d8b9ca4f9ab4b1ce08f583c2bd8d8967a557df683af547558d91 [2022-11-23 15:20:48,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:20:48,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:20:48,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:20:48,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:20:48,342 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:20:48,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-11-23 15:20:51,457 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:20:52,091 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:20:52,092 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-11-23 15:20:52,124 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/data/6ec137186/368aa550f53a49679544bddb09278c13/FLAGe7b442058 [2022-11-23 15:20:52,148 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/data/6ec137186/368aa550f53a49679544bddb09278c13 [2022-11-23 15:20:52,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:20:52,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:20:52,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:20:52,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:20:52,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:20:52,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebda528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52, skipping insertion in model container [2022-11-23 15:20:52,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:20:52,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:20:52,801 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3602] [2022-11-23 15:20:52,802 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3603-3604] [2022-11-23 15:20:53,128 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_a15091d4-d565-45e0-ae72-8907d858f71e/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i[110145,110158] [2022-11-23 15:20:54,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:20:54,416 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:20:54,590 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3602] [2022-11-23 15:20:54,591 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3603-3604] [2022-11-23 15:20:54,600 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_a15091d4-d565-45e0-ae72-8907d858f71e/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i[110145,110158] [2022-11-23 15:20:54,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:20:54,959 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:20:54,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54 WrapperNode [2022-11-23 15:20:54,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:20:54,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:20:54,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:20:54,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:20:54,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,221 INFO L138 Inliner]: procedures = 199, calls = 1517, calls flagged for inlining = 95, calls inlined = 93, statements flattened = 3854 [2022-11-23 15:20:55,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:20:55,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:20:55,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:20:55,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:20:55,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,429 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:20:55,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:20:55,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:20:55,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:20:55,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (1/1) ... [2022-11-23 15:20:55,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:20:55,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:20:55,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:20:55,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:20:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_start [2022-11-23 15:20:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_start [2022-11-23 15:20:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_termios [2022-11-23 15:20:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_termios [2022-11-23 15:20:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 15:20:55,562 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 15:20:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:20:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:20:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:20:55,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:20:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2022-11-23 15:20:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2022-11-23 15:20:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-23 15:20:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-23 15:20:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmset [2022-11-23 15:20:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmset [2022-11-23 15:20:55,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-11-23 15:20:55,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-11-23 15:20:55,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:20:55,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:20:55,564 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-11-23 15:20:55,564 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-11-23 15:20:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-11-23 15:20:55,565 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-11-23 15:20:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure raise_dtr [2022-11-23 15:20:55,565 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_dtr [2022-11-23 15:20:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2022-11-23 15:20:55,565 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2022-11-23 15:20:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_chars_in_buffer [2022-11-23 15:20:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_chars_in_buffer [2022-11-23 15:20:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2022-11-23 15:20:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2022-11-23 15:20:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 15:20:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 15:20:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_buffer [2022-11-23 15:20:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_buffer [2022-11-23 15:20:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:20:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:20:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:20:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:20:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2022-11-23 15:20:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2022-11-23 15:20:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:20:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:20:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2022-11-23 15:20:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2022-11-23 15:20:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_put_char [2022-11-23 15:20:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_put_char [2022-11-23 15:20:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:20:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:20:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 15:20:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 15:20:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write_room [2022-11-23 15:20:55,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write_room [2022-11-23 15:20:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_ioctl [2022-11-23 15:20:55,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_ioctl [2022-11-23 15:20:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-23 15:20:55,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-23 15:20:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr [2022-11-23 15:20:55,571 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr [2022-11-23 15:20:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:20:55,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:20:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:20:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:20:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-23 15:20:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-23 15:20:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-23 15:20:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-23 15:20:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-23 15:20:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-23 15:20:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 15:20:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 15:20:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2022-11-23 15:20:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2022-11-23 15:20:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 15:20:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 15:20:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:20:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_dtr_rts [2022-11-23 15:20:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_dtr_rts [2022-11-23 15:20:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:20:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:20:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 15:20:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 15:20:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_config_port [2022-11-23 15:20:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_config_port [2022-11-23 15:20:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:20:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:20:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmget [2022-11-23 15:20:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmget [2022-11-23 15:20:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_unthrottle [2022-11-23 15:20:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_unthrottle [2022-11-23 15:20:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure lock_card [2022-11-23 15:20:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_card [2022-11-23 15:20:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_chars [2022-11-23 15:20:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_chars [2022-11-23 15:20:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:20:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:20:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:20:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 15:20:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 15:20:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-23 15:20:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-23 15:20:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:20:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:20:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_carrier_raised [2022-11-23 15:20:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_carrier_raised [2022-11-23 15:20:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:20:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_hangup [2022-11-23 15:20:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_hangup [2022-11-23 15:20:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_throttle [2022-11-23 15:20:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_throttle [2022-11-23 15:20:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:20:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-11-23 15:20:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-11-23 15:20:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:20:55,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:20:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:20:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:20:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-23 15:20:55,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-23 15:20:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-23 15:20:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-23 15:20:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 15:20:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 15:20:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_card [2022-11-23 15:20:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_card [2022-11-23 15:20:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_send_break [2022-11-23 15:20:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_send_break [2022-11-23 15:20:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:20:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-23 15:20:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-23 15:20:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure WaitTillCardIsFree [2022-11-23 15:20:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure WaitTillCardIsFree [2022-11-23 15:20:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:20:55,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:20:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-11-23 15:20:55,583 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-11-23 15:20:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 15:20:55,583 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 15:20:56,339 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:20:56,343 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:20:57,168 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:21:06,336 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:21:08,933 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:21:08,934 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:21:08,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:21:08 BoogieIcfgContainer [2022-11-23 15:21:08,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:21:08,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:21:08,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:21:08,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:21:08,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:20:52" (1/3) ... [2022-11-23 15:21:08,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25545cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:21:08, skipping insertion in model container [2022-11-23 15:21:08,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:54" (2/3) ... [2022-11-23 15:21:08,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25545cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:21:08, skipping insertion in model container [2022-11-23 15:21:08,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:21:08" (3/3) ... [2022-11-23 15:21:08,952 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-11-23 15:21:08,974 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:21:08,974 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:21:09,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:21:09,089 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@26574d1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:21:09,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:21:09,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 1034 states, 643 states have (on average 1.4230171073094868) internal successors, (915), 674 states have internal predecessors, (915), 330 states have call successors, (330), 61 states have call predecessors, (330), 60 states have return successors, (322), 320 states have call predecessors, (322), 322 states have call successors, (322) [2022-11-23 15:21:09,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-23 15:21:09,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:09,154 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:09,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:09,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:09,160 INFO L85 PathProgramCache]: Analyzing trace with hash 284932543, now seen corresponding path program 1 times [2022-11-23 15:21:09,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:09,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859926886] [2022-11-23 15:21:09,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:09,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-23 15:21:10,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:10,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859926886] [2022-11-23 15:21:10,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859926886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:10,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:10,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:21:10,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672429194] [2022-11-23 15:21:10,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:10,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:10,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:10,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:10,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:10,188 INFO L87 Difference]: Start difference. First operand has 1034 states, 643 states have (on average 1.4230171073094868) internal successors, (915), 674 states have internal predecessors, (915), 330 states have call successors, (330), 61 states have call predecessors, (330), 60 states have return successors, (322), 320 states have call predecessors, (322), 322 states have call successors, (322) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 15:21:12,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:21:13,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:13,993 INFO L93 Difference]: Finished difference Result 2892 states and 4441 transitions. [2022-11-23 15:21:13,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:13,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 140 [2022-11-23 15:21:13,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:14,035 INFO L225 Difference]: With dead ends: 2892 [2022-11-23 15:21:14,035 INFO L226 Difference]: Without dead ends: 1834 [2022-11-23 15:21:14,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:14,053 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 1258 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:14,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 3067 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 282 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-23 15:21:14,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2022-11-23 15:21:14,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1834. [2022-11-23 15:21:14,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1159 states have (on average 1.4115616911130284) internal successors, (1636), 1198 states have internal predecessors, (1636), 564 states have call successors, (564), 111 states have call predecessors, (564), 110 states have return successors, (563), 559 states have call predecessors, (563), 563 states have call successors, (563) [2022-11-23 15:21:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2763 transitions. [2022-11-23 15:21:14,336 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2763 transitions. Word has length 140 [2022-11-23 15:21:14,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:14,336 INFO L495 AbstractCegarLoop]: Abstraction has 1834 states and 2763 transitions. [2022-11-23 15:21:14,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 15:21:14,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2763 transitions. [2022-11-23 15:21:14,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-23 15:21:14,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:14,372 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:14,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:21:14,372 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:14,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:14,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1153573999, now seen corresponding path program 1 times [2022-11-23 15:21:14,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:14,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786164657] [2022-11-23 15:21:14,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:14,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 15:21:15,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:15,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786164657] [2022-11-23 15:21:15,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786164657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:15,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:15,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:21:15,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711368270] [2022-11-23 15:21:15,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:15,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:15,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:15,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:15,221 INFO L87 Difference]: Start difference. First operand 1834 states and 2763 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-23 15:21:18,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:21:18,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:18,699 INFO L93 Difference]: Finished difference Result 3655 states and 5510 transitions. [2022-11-23 15:21:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:18,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 173 [2022-11-23 15:21:18,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:18,714 INFO L225 Difference]: With dead ends: 3655 [2022-11-23 15:21:18,714 INFO L226 Difference]: Without dead ends: 1838 [2022-11-23 15:21:18,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:18,724 INFO L413 NwaCegarLoop]: 1395 mSDtfsCounter, 2 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:18,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2788 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-23 15:21:18,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2022-11-23 15:21:18,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1836. [2022-11-23 15:21:18,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1836 states, 1161 states have (on average 1.4108527131782946) internal successors, (1638), 1200 states have internal predecessors, (1638), 564 states have call successors, (564), 111 states have call predecessors, (564), 110 states have return successors, (563), 559 states have call predecessors, (563), 563 states have call successors, (563) [2022-11-23 15:21:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2765 transitions. [2022-11-23 15:21:18,825 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2765 transitions. Word has length 173 [2022-11-23 15:21:18,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:18,826 INFO L495 AbstractCegarLoop]: Abstraction has 1836 states and 2765 transitions. [2022-11-23 15:21:18,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-23 15:21:18,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2765 transitions. [2022-11-23 15:21:18,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-23 15:21:18,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:18,839 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:18,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:21:18,839 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:18,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:18,840 INFO L85 PathProgramCache]: Analyzing trace with hash 13556959, now seen corresponding path program 1 times [2022-11-23 15:21:18,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:18,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985935411] [2022-11-23 15:21:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:18,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:19,425 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 15:21:19,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:19,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985935411] [2022-11-23 15:21:19,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985935411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:19,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:19,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:21:19,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7328804] [2022-11-23 15:21:19,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:19,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:19,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:19,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:19,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:19,432 INFO L87 Difference]: Start difference. First operand 1836 states and 2765 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-23 15:21:22,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:21:22,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:22,681 INFO L93 Difference]: Finished difference Result 3657 states and 5510 transitions. [2022-11-23 15:21:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:22,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 175 [2022-11-23 15:21:22,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:22,698 INFO L225 Difference]: With dead ends: 3657 [2022-11-23 15:21:22,699 INFO L226 Difference]: Without dead ends: 1838 [2022-11-23 15:21:22,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:22,708 INFO L413 NwaCegarLoop]: 1396 mSDtfsCounter, 0 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:22,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2790 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-23 15:21:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2022-11-23 15:21:22,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2022-11-23 15:21:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1163 states have (on average 1.410146173688736) internal successors, (1640), 1202 states have internal predecessors, (1640), 564 states have call successors, (564), 111 states have call predecessors, (564), 110 states have return successors, (563), 559 states have call predecessors, (563), 563 states have call successors, (563) [2022-11-23 15:21:22,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2767 transitions. [2022-11-23 15:21:22,821 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2767 transitions. Word has length 175 [2022-11-23 15:21:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:22,822 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2767 transitions. [2022-11-23 15:21:22,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-23 15:21:22,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2767 transitions. [2022-11-23 15:21:22,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-23 15:21:22,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:22,835 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:22,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:21:22,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:22,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash -154782580, now seen corresponding path program 1 times [2022-11-23 15:21:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:22,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006004383] [2022-11-23 15:21:22,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:22,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 15:21:23,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:23,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006004383] [2022-11-23 15:21:23,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006004383] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:21:23,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856660482] [2022-11-23 15:21:23,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:23,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:23,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:21:23,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:21:23,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:21:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:25,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 3499 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:21:25,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:21:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-23 15:21:25,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:21:25,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856660482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:25,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:21:25,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-23 15:21:25,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388218590] [2022-11-23 15:21:25,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:25,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:25,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:25,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:25,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:25,320 INFO L87 Difference]: Start difference. First operand 1838 states and 2767 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-23 15:21:27,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:21:29,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:29,112 INFO L93 Difference]: Finished difference Result 4491 states and 6759 transitions. [2022-11-23 15:21:29,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:29,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 176 [2022-11-23 15:21:29,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:29,132 INFO L225 Difference]: With dead ends: 4491 [2022-11-23 15:21:29,133 INFO L226 Difference]: Without dead ends: 2670 [2022-11-23 15:21:29,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:29,144 INFO L413 NwaCegarLoop]: 1641 mSDtfsCounter, 1224 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:29,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 3018 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 281 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-23 15:21:29,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2022-11-23 15:21:29,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2670. [2022-11-23 15:21:29,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2670 states, 1697 states have (on average 1.4113140836770772) internal successors, (2395), 1755 states have internal predecessors, (2395), 810 states have call successors, (810), 163 states have call predecessors, (810), 162 states have return successors, (809), 803 states have call predecessors, (809), 809 states have call successors, (809) [2022-11-23 15:21:29,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 4014 transitions. [2022-11-23 15:21:29,340 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 4014 transitions. Word has length 176 [2022-11-23 15:21:29,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:29,343 INFO L495 AbstractCegarLoop]: Abstraction has 2670 states and 4014 transitions. [2022-11-23 15:21:29,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-23 15:21:29,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 4014 transitions. [2022-11-23 15:21:29,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-23 15:21:29,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:29,371 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:29,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:21:29,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:29,594 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:29,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:29,595 INFO L85 PathProgramCache]: Analyzing trace with hash 989929724, now seen corresponding path program 1 times [2022-11-23 15:21:29,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:29,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397750566] [2022-11-23 15:21:29,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:29,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:30,245 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-11-23 15:21:30,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:30,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397750566] [2022-11-23 15:21:30,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397750566] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:21:30,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445473276] [2022-11-23 15:21:30,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:30,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:30,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:21:30,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:21:30,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:21:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:31,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 2994 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:21:31,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:21:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-23 15:21:32,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:21:32,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445473276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:32,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:21:32,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-23 15:21:32,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718122909] [2022-11-23 15:21:32,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:32,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:32,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:32,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:32,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:32,409 INFO L87 Difference]: Start difference. First operand 2670 states and 4014 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-23 15:21:35,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:21:35,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:35,978 INFO L93 Difference]: Finished difference Result 4333 states and 6652 transitions. [2022-11-23 15:21:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:35,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 195 [2022-11-23 15:21:35,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:36,010 INFO L225 Difference]: With dead ends: 4333 [2022-11-23 15:21:36,010 INFO L226 Difference]: Without dead ends: 4330 [2022-11-23 15:21:36,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:36,015 INFO L413 NwaCegarLoop]: 1698 mSDtfsCounter, 998 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:36,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 3029 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 282 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 15:21:36,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2022-11-23 15:21:36,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 4213. [2022-11-23 15:21:36,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4213 states, 2761 states have (on average 1.4382470119521913) internal successors, (3971), 2832 states have internal predecessors, (3971), 1185 states have call successors, (1185), 267 states have call predecessors, (1185), 266 states have return successors, (1286), 1168 states have call predecessors, (1286), 1184 states have call successors, (1286) [2022-11-23 15:21:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4213 states to 4213 states and 6442 transitions. [2022-11-23 15:21:36,269 INFO L78 Accepts]: Start accepts. Automaton has 4213 states and 6442 transitions. Word has length 195 [2022-11-23 15:21:36,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:36,271 INFO L495 AbstractCegarLoop]: Abstraction has 4213 states and 6442 transitions. [2022-11-23 15:21:36,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-23 15:21:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand 4213 states and 6442 transitions. [2022-11-23 15:21:36,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-23 15:21:36,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:36,308 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:36,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:21:36,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:36,522 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:36,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:36,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1612367554, now seen corresponding path program 1 times [2022-11-23 15:21:36,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:36,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849680861] [2022-11-23 15:21:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:36,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:37,106 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-11-23 15:21:37,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:37,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849680861] [2022-11-23 15:21:37,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849680861] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:21:37,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154566002] [2022-11-23 15:21:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:37,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:37,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:21:37,113 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:21:37,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:21:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:38,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 3638 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:21:38,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:21:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-23 15:21:39,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:21:39,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154566002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:39,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:21:39,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-23 15:21:39,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739133535] [2022-11-23 15:21:39,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:39,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:39,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:39,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:39,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:39,424 INFO L87 Difference]: Start difference. First operand 4213 states and 6442 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2022-11-23 15:21:42,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:21:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:43,021 INFO L93 Difference]: Finished difference Result 5886 states and 9106 transitions. [2022-11-23 15:21:43,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:43,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 200 [2022-11-23 15:21:43,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:43,058 INFO L225 Difference]: With dead ends: 5886 [2022-11-23 15:21:43,059 INFO L226 Difference]: Without dead ends: 5883 [2022-11-23 15:21:43,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:43,064 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 1011 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:43,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 2977 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 15:21:43,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5883 states. [2022-11-23 15:21:43,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5883 to 5766. [2022-11-23 15:21:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5766 states, 3831 states have (on average 1.4505351083268077) internal successors, (5557), 3917 states have internal predecessors, (5557), 1568 states have call successors, (1568), 367 states have call predecessors, (1568), 366 states have return successors, (1771), 1541 states have call predecessors, (1771), 1567 states have call successors, (1771) [2022-11-23 15:21:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 8896 transitions. [2022-11-23 15:21:43,404 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 8896 transitions. Word has length 200 [2022-11-23 15:21:43,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:43,404 INFO L495 AbstractCegarLoop]: Abstraction has 5766 states and 8896 transitions. [2022-11-23 15:21:43,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2022-11-23 15:21:43,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 8896 transitions. [2022-11-23 15:21:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-23 15:21:43,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:43,460 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:43,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:21:43,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 15:21:43,673 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:43,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:43,673 INFO L85 PathProgramCache]: Analyzing trace with hash -734523591, now seen corresponding path program 1 times [2022-11-23 15:21:43,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:43,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011734479] [2022-11-23 15:21:43,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:43,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:44,112 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-23 15:21:44,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:44,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011734479] [2022-11-23 15:21:44,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011734479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:21:44,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414596991] [2022-11-23 15:21:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:44,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:44,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:21:44,115 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:21:44,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:21:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:45,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 3113 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:21:45,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:21:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-23 15:21:45,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:21:45,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414596991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:45,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:21:45,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-23 15:21:45,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860450426] [2022-11-23 15:21:45,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:45,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:45,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:45,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:45,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:45,538 INFO L87 Difference]: Start difference. First operand 5766 states and 8896 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-23 15:21:48,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:21:49,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:49,493 INFO L93 Difference]: Finished difference Result 16957 states and 26149 transitions. [2022-11-23 15:21:49,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:49,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 228 [2022-11-23 15:21:49,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:49,731 INFO L225 Difference]: With dead ends: 16957 [2022-11-23 15:21:49,731 INFO L226 Difference]: Without dead ends: 11208 [2022-11-23 15:21:49,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:49,771 INFO L413 NwaCegarLoop]: 1687 mSDtfsCounter, 1453 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:49,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 2996 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 296 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-23 15:21:49,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11208 states. [2022-11-23 15:21:50,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11208 to 11202. [2022-11-23 15:21:50,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11202 states, 7474 states have (on average 1.4514316296494514) internal successors, (10848), 7645 states have internal predecessors, (10848), 3004 states have call successors, (3004), 724 states have call predecessors, (3004), 723 states have return successors, (3375), 2948 states have call predecessors, (3375), 3003 states have call successors, (3375) [2022-11-23 15:21:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11202 states to 11202 states and 17227 transitions. [2022-11-23 15:21:50,377 INFO L78 Accepts]: Start accepts. Automaton has 11202 states and 17227 transitions. Word has length 228 [2022-11-23 15:21:50,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:50,379 INFO L495 AbstractCegarLoop]: Abstraction has 11202 states and 17227 transitions. [2022-11-23 15:21:50,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-23 15:21:50,379 INFO L276 IsEmpty]: Start isEmpty. Operand 11202 states and 17227 transitions. [2022-11-23 15:21:50,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-23 15:21:50,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:50,476 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:50,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:21:50,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:50,689 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:50,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:50,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1330104449, now seen corresponding path program 1 times [2022-11-23 15:21:50,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:50,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985085915] [2022-11-23 15:21:50,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:50,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-23 15:21:51,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:51,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985085915] [2022-11-23 15:21:51,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985085915] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:21:51,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529122591] [2022-11-23 15:21:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:51,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:51,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:21:51,102 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:21:51,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a15091d4-d565-45e0-ae72-8907d858f71e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:21:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:52,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 3113 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:21:52,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:21:52,488 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 73 proven. 1 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-11-23 15:21:52,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:21:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-23 15:21:52,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529122591] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:21:52,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1069508043] [2022-11-23 15:21:52,730 INFO L159 IcfgInterpreter]: Started Sifa with 150 locations of interest [2022-11-23 15:21:52,730 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:21:52,736 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:21:52,743 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:21:52,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:21:57,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 22 select indices, 22 select index equivalence classes, 276 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 1907 treesize of output 1544 [2022-11-23 15:21:58,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 395 treesize of output 320 [2022-11-23 15:21:58,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 395 treesize of output 320 [2022-11-23 15:22:02,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:02,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 276 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 1908 treesize of output 1430 [2022-11-23 15:22:03,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 63 [2022-11-23 15:22:03,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:03,486 INFO L217 Elim1Store]: Index analysis took 180 ms [2022-11-23 15:22:03,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 70 select indices, 70 select index equivalence classes, 2415 disjoint index pairs (out of 2415 index pairs), introduced 70 new quantified variables, introduced 0 case distinctions, treesize of input 489 treesize of output 211 [2022-11-23 15:22:03,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 231 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 69 [2022-11-23 15:22:03,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2022-11-23 15:22:07,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 276 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 1908 treesize of output 1430 [2022-11-23 15:22:07,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 63 [2022-11-23 15:22:07,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2022-11-23 15:22:07,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:07,888 INFO L217 Elim1Store]: Index analysis took 153 ms [2022-11-23 15:22:07,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 70 select indices, 70 select index equivalence classes, 2415 disjoint index pairs (out of 2415 index pairs), introduced 70 new quantified variables, introduced 0 case distinctions, treesize of input 489 treesize of output 211 [2022-11-23 15:22:08,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 231 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 69 [2022-11-23 15:22:20,299 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-23 15:22:20,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-23 15:22:20,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-23 15:22:21,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 759 treesize of output 613 [2022-11-23 15:22:21,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 759 treesize of output 613 [2022-11-23 15:22:21,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-23 15:22:22,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-11-23 15:22:22,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 15:22:22,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 799 treesize of output 653 [2022-11-23 15:22:22,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 810 treesize of output 662 [2022-11-23 15:22:22,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:22,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 780 treesize of output 634 [2022-11-23 15:22:23,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:23,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:23,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:23,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:23,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:23,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 791 treesize of output 643 [2022-11-23 15:22:27,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:27,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:27,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:27,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:27,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:27,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:28,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,167 INFO L217 Elim1Store]: Index analysis took 309 ms [2022-11-23 15:22:28,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 3979 treesize of output 3663 [2022-11-23 15:22:28,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:28,955 INFO L217 Elim1Store]: Index analysis took 162 ms [2022-11-23 15:22:28,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 4011 treesize of output 3697 [2022-11-23 15:22:29,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,424 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-11-23 15:22:29,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 4011 treesize of output 3697 [2022-11-23 15:22:29,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:29,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:29,896 INFO L217 Elim1Store]: Index analysis took 140 ms [2022-11-23 15:22:29,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 3973 treesize of output 3657 [2022-11-23 15:22:30,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 3988 treesize of output 3674 [2022-11-23 15:22:30,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:30,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 3988 treesize of output 3674 [2022-11-23 15:22:31,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:31,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3972 treesize of output 3966 [2022-11-23 15:22:31,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:31,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3977 treesize of output 3989 [2022-11-23 15:22:38,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:38,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:22:38,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:38,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:22:38,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:38,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-23 15:22:38,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 15:22:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:38,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 23 [2022-11-23 15:22:38,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 15:22:39,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-23 15:22:39,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2022-11-23 15:22:39,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:39,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2022-11-23 15:22:39,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:22:39,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-11-23 15:22:40,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 15:22:40,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 15:22:40,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2022-11-23 15:22:42,595 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:22:42,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-23 15:22:43,832 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:22:43,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-23 15:22:44,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 31 [2022-11-23 15:22:44,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 15:22:44,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 15:22:44,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:22:44,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-11-23 15:22:45,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2022-11-23 15:22:45,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-23 15:22:45,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2022-11-23 15:22:45,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 15:22:45,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 15:22:45,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2022-11-23 15:22:47,868 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:22:47,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-23 15:22:48,929 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:22:48,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-23 15:22:55,085 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 15:22:55,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-23 15:22:55,195 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-23 15:22:55,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-23 15:23:02,430 INFO L197 IcfgInterpreter]: Interpreting procedure IS_ERR with input of size 166 for LOIs [2022-11-23 15:23:02,965 INFO L197 IcfgInterpreter]: Interpreting procedure ldv__builtin_expect with input of size 166 for LOIs [2022-11-23 15:23:03,014 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 1997 for LOIs [2022-11-23 15:23:11,944 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 171 for LOIs [2022-11-23 15:23:12,127 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:23:37,428 WARN L233 SmtUtils]: Spent 25.16s on a formula simplification that was a NOOP. DAG size: 1851 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:24:36,213 WARN L233 SmtUtils]: Spent 58.49s on a formula simplification. DAG size of input: 1997 DAG size of output: 1859 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:25:34,583 WARN L233 SmtUtils]: Spent 58.02s on a formula simplification. DAG size of input: 2005 DAG size of output: 1868 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:26:32,826 WARN L233 SmtUtils]: Spent 57.83s on a formula simplification. DAG size of input: 2011 DAG size of output: 1874 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:26:48,862 WARN L233 SmtUtils]: Spent 7.85s on a formula simplification. DAG size of input: 714 DAG size of output: 708 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:26:57,666 WARN L233 SmtUtils]: Spent 8.49s on a formula simplification. DAG size of input: 736 DAG size of output: 730 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:06,703 WARN L233 SmtUtils]: Spent 8.67s on a formula simplification. DAG size of input: 750 DAG size of output: 734 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:15,844 WARN L233 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 754 DAG size of output: 738 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:25,481 WARN L233 SmtUtils]: Spent 9.23s on a formula simplification. DAG size of input: 762 DAG size of output: 744 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:34,996 WARN L233 SmtUtils]: Spent 9.16s on a formula simplification. DAG size of input: 766 DAG size of output: 748 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:44,797 WARN L233 SmtUtils]: Spent 9.42s on a formula simplification. DAG size of input: 777 DAG size of output: 759 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:27:54,823 WARN L233 SmtUtils]: Spent 9.61s on a formula simplification. DAG size of input: 779 DAG size of output: 761 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:28:04,783 WARN L233 SmtUtils]: Spent 9.46s on a formula simplification. DAG size of input: 782 DAG size of output: 764 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:28:14,126 WARN L233 SmtUtils]: Spent 8.90s on a formula simplification. DAG size of input: 770 DAG size of output: 752 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:28:45,082 WARN L233 SmtUtils]: Spent 30.39s on a formula simplification. DAG size of input: 936 DAG size of output: 798 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:28:54,984 WARN L233 SmtUtils]: Spent 9.40s on a formula simplification. DAG size of input: 787 DAG size of output: 766 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:29:04,754 WARN L233 SmtUtils]: Spent 9.23s on a formula simplification. DAG size of input: 777 DAG size of output: 756 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:29:23,254 WARN L233 SmtUtils]: Spent 17.83s on a formula simplification. DAG size of input: 1042 DAG size of output: 869 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:29:38,262 WARN L233 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 500 DAG size of output: 395 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:30:18,936 WARN L233 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 784 DAG size of output: 766 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:30:29,187 WARN L233 SmtUtils]: Spent 9.43s on a formula simplification. DAG size of input: 786 DAG size of output: 768 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:30:39,024 WARN L233 SmtUtils]: Spent 8.99s on a formula simplification. DAG size of input: 769 DAG size of output: 751 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:30:49,553 WARN L233 SmtUtils]: Spent 9.67s on a formula simplification. DAG size of input: 792 DAG size of output: 771 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:30:59,644 WARN L233 SmtUtils]: Spent 9.21s on a formula simplification. DAG size of input: 773 DAG size of output: 752 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:30:59,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1069508043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:59,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:30:59,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [4, 4, 4] total 50 [2022-11-23 15:30:59,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154910004] [2022-11-23 15:30:59,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:59,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-23 15:30:59,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:59,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-23 15:30:59,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=2279, Unknown=0, NotChecked=0, Total=2450 [2022-11-23 15:30:59,654 INFO L87 Difference]: Start difference. First operand 11202 states and 17227 transitions. Second operand has 45 states, 36 states have (on average 2.888888888888889) internal successors, (104), 33 states have internal predecessors, (104), 8 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) [2022-11-23 15:31:27,326 WARN L233 SmtUtils]: Spent 25.02s on a formula simplification that was a NOOP. DAG size: 1855 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:31:52,945 WARN L233 SmtUtils]: Spent 24.87s on a formula simplification that was a NOOP. DAG size: 1873 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:32:22,154 WARN L233 SmtUtils]: Spent 18.61s on a formula simplification. DAG size of input: 870 DAG size of output: 848 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:32:38,358 WARN L233 SmtUtils]: Spent 13.52s on a formula simplification. DAG size of input: 872 DAG size of output: 868 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:33:56,090 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 []