./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1ef83f89a2480bb974b27f067785c3859d21a1e764735321272ad8be1e6dccbd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:19:19,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:19:19,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:19:19,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:19:19,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:19:19,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:19:19,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:19:19,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:19:19,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:19:19,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:19:19,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:19:19,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:19:19,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:19:19,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:19:19,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:19:19,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:19:19,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:19:19,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:19:19,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:19:19,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:19:19,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:19:19,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:19:19,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:19:19,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:19:19,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:19:19,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:19:19,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:19:19,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:19:19,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:19:19,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:19:19,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:19:19,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:19:19,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:19:19,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:19:19,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:19:19,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:19:19,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:19:19,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:19:19,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:19:19,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:19:19,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:19:19,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:19:19,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:19:19,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:19:19,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:19:19,657 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:19:19,658 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:19:19,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:19:19,658 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:19:19,659 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:19:19,659 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:19:19,659 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:19:19,660 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:19:19,660 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:19:19,661 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:19:19,661 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:19:19,661 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:19:19,661 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:19:19,662 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:19:19,662 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:19:19,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:19:19,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:19:19,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:19:19,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:19:19,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:19:19,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:19:19,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:19:19,666 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:19:19,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:19:19,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:19:19,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:19:19,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:19:19,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:19:19,667 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:19:19,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:19:19,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:19:19,669 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:19:19,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:19:19,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:19:19,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:19:19,670 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_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef83f89a2480bb974b27f067785c3859d21a1e764735321272ad8be1e6dccbd [2022-11-03 02:19:19,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:19:20,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:19:20,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:19:20,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:19:20,034 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:19:20,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-11-03 02:19:20,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/data/33b4da8c2/07778fc9b5074c74a23eb3f22d4b54b5/FLAGa37cf1c85 [2022-11-03 02:19:20,983 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:19:20,984 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-11-03 02:19:21,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/data/33b4da8c2/07778fc9b5074c74a23eb3f22d4b54b5/FLAGa37cf1c85 [2022-11-03 02:19:21,537 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/data/33b4da8c2/07778fc9b5074c74a23eb3f22d4b54b5 [2022-11-03 02:19:21,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:19:21,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:19:21,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:19:21,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:19:21,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:19:21,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:19:21" (1/1) ... [2022-11-03 02:19:21,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a25d233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:21, skipping insertion in model container [2022-11-03 02:19:21,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:19:21" (1/1) ... [2022-11-03 02:19:21,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:19:21,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:19:23,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2022-11-03 02:19:23,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:19:23,184 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:19:23,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2022-11-03 02:19:23,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:19:23,606 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:19:23,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23 WrapperNode [2022-11-03 02:19:23,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:19:23,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:19:23,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:19:23,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:19:23,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,784 INFO L138 Inliner]: procedures = 191, calls = 829, calls flagged for inlining = 88, calls inlined = 74, statements flattened = 2144 [2022-11-03 02:19:23,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:19:23,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:19:23,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:19:23,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:19:23,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,913 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:19:23,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:19:23,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:19:23,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:19:23,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (1/1) ... [2022-11-03 02:19:23,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:19:24,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:19:24,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:19:24,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:19:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:19:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_size [2022-11-03 02:19:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_size [2022-11-03 02:19:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:19:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:19:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:19:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2022-11-03 02:19:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2022-11-03 02:19:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:19:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:19:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-03 02:19:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-03 02:19:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 02:19:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 02:19:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_done [2022-11-03 02:19:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_done [2022-11-03 02:19:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:19:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:19:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:19:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:19:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:19:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:19:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_flat [2022-11-03 02:19:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_flat [2022-11-03 02:19:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:19:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:19:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:19:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 02:19:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 02:19:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:19:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:19:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure input_alloc_absinfo [2022-11-03 02:19:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure input_alloc_absinfo [2022-11-03 02:19:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-03 02:19:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-03 02:19:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:19:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:19:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_find [2022-11-03 02:19:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_find [2022-11-03 02:19:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_uinput_device [2022-11-03 02:19:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_uinput_device [2022-11-03 02:19:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:19:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_allocate_device [2022-11-03 02:19:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_allocate_device [2022-11-03 02:19:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 02:19:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 02:19:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:19:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl_handler [2022-11-03 02:19:24,087 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl_handler [2022-11-03 02:19:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:19:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:19:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:19:24,090 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_from_user [2022-11-03 02:19:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_from_user [2022-11-03 02:19:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_destroy_device [2022-11-03 02:19:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_destroy_device [2022-11-03 02:19:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:19:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2022-11-03 02:19:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2022-11-03 02:19:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:19:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:19:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 02:19:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 02:19:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-03 02:19:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-03 02:19:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-03 02:19:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-03 02:19:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2022-11-03 02:19:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2022-11-03 02:19:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:19:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:19:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2022-11-03 02:19:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2022-11-03 02:19:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 02:19:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 02:19:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-03 02:19:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-03 02:19:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:19:24,096 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:19:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:19:24,096 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:19:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 02:19:24,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 02:19:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:19:24,097 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:19:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:19:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:19:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:19:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-03 02:19:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-03 02:19:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 02:19:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 02:19:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:19:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 02:19:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 02:19:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 02:19:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 02:19:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:19:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:19:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:19:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:19:24,817 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:19:24,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:19:33,976 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:19:34,429 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:19:34,430 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:19:34,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:19:34 BoogieIcfgContainer [2022-11-03 02:19:34,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:19:34,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:19:34,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:19:34,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:19:34,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:19:21" (1/3) ... [2022-11-03 02:19:34,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60204a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:19:34, skipping insertion in model container [2022-11-03 02:19:34,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:19:23" (2/3) ... [2022-11-03 02:19:34,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60204a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:19:34, skipping insertion in model container [2022-11-03 02:19:34,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:19:34" (3/3) ... [2022-11-03 02:19:34,449 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-11-03 02:19:34,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:19:34,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:19:34,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:19:34,575 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;@19f42a4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:19:34,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:19:34,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 519 states, 338 states have (on average 1.3905325443786982) internal successors, (470), 350 states have internal predecessors, (470), 137 states have call successors, (137), 42 states have call predecessors, (137), 42 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-11-03 02:19:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:19:34,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:34,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:34,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:34,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -284689213, now seen corresponding path program 1 times [2022-11-03 02:19:34,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:34,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816380402] [2022-11-03 02:19:34,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:34,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:19:35,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:35,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816380402] [2022-11-03 02:19:35,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816380402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:35,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:35,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:19:35,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317731676] [2022-11-03 02:19:35,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:35,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:19:35,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:35,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:19:35,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:35,108 INFO L87 Difference]: Start difference. First operand has 519 states, 338 states have (on average 1.3905325443786982) internal successors, (470), 350 states have internal predecessors, (470), 137 states have call successors, (137), 42 states have call predecessors, (137), 42 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:19:35,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:35,581 INFO L93 Difference]: Finished difference Result 1032 states and 1488 transitions. [2022-11-03 02:19:35,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:19:35,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-03 02:19:35,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:35,598 INFO L225 Difference]: With dead ends: 1032 [2022-11-03 02:19:35,599 INFO L226 Difference]: Without dead ends: 515 [2022-11-03 02:19:35,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:35,609 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 731 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:35,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 648 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:19:35,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-11-03 02:19:35,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2022-11-03 02:19:35,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 337 states have (on average 1.3827893175074184) internal successors, (466), 346 states have internal predecessors, (466), 136 states have call successors, (136), 42 states have call predecessors, (136), 41 states have return successors, (132), 130 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-03 02:19:35,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 734 transitions. [2022-11-03 02:19:35,697 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 734 transitions. Word has length 10 [2022-11-03 02:19:35,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:35,699 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 734 transitions. [2022-11-03 02:19:35,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:19:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 734 transitions. [2022-11-03 02:19:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:19:35,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:35,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:35,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:19:35,702 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:35,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:35,702 INFO L85 PathProgramCache]: Analyzing trace with hash -235746047, now seen corresponding path program 1 times [2022-11-03 02:19:35,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:35,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496899306] [2022-11-03 02:19:35,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:35,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:35,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:19:35,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:35,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496899306] [2022-11-03 02:19:35,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496899306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:35,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:35,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:19:35,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909146396] [2022-11-03 02:19:35,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:35,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:19:35,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:35,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:19:35,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:35,815 INFO L87 Difference]: Start difference. First operand 515 states and 734 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:19:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:36,197 INFO L93 Difference]: Finished difference Result 517 states and 735 transitions. [2022-11-03 02:19:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:19:36,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-03 02:19:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:36,202 INFO L225 Difference]: With dead ends: 517 [2022-11-03 02:19:36,202 INFO L226 Difference]: Without dead ends: 514 [2022-11-03 02:19:36,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:36,204 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 726 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:36,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 645 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:19:36,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-11-03 02:19:36,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2022-11-03 02:19:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 337 states have (on average 1.3798219584569733) internal successors, (465), 345 states have internal predecessors, (465), 135 states have call successors, (135), 42 states have call predecessors, (135), 41 states have return successors, (132), 130 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-03 02:19:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 732 transitions. [2022-11-03 02:19:36,252 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 732 transitions. Word has length 11 [2022-11-03 02:19:36,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:36,252 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 732 transitions. [2022-11-03 02:19:36,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:19:36,253 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 732 transitions. [2022-11-03 02:19:36,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:19:36,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:36,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:36,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:19:36,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:36,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:36,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1281496966, now seen corresponding path program 1 times [2022-11-03 02:19:36,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:36,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085401473] [2022-11-03 02:19:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:36,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:36,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:19:36,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:36,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085401473] [2022-11-03 02:19:36,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085401473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:36,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:36,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:19:36,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561315888] [2022-11-03 02:19:36,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:36,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:19:36,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:36,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:19:36,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:36,316 INFO L87 Difference]: Start difference. First operand 514 states and 732 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:19:37,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:37,003 INFO L93 Difference]: Finished difference Result 655 states and 919 transitions. [2022-11-03 02:19:37,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:19:37,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-03 02:19:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:37,009 INFO L225 Difference]: With dead ends: 655 [2022-11-03 02:19:37,009 INFO L226 Difference]: Without dead ends: 645 [2022-11-03 02:19:37,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:37,012 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 229 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:37,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1285 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:19:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2022-11-03 02:19:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2022-11-03 02:19:37,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 416 states have (on average 1.3557692307692308) internal successors, (564), 427 states have internal predecessors, (564), 169 states have call successors, (169), 61 states have call predecessors, (169), 59 states have return successors, (170), 161 states have call predecessors, (170), 166 states have call successors, (170) [2022-11-03 02:19:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 903 transitions. [2022-11-03 02:19:37,070 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 903 transitions. Word has length 12 [2022-11-03 02:19:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:37,070 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 903 transitions. [2022-11-03 02:19:37,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:19:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 903 transitions. [2022-11-03 02:19:37,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 02:19:37,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:37,074 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:19:37,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:19:37,075 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:37,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:37,075 INFO L85 PathProgramCache]: Analyzing trace with hash -588509230, now seen corresponding path program 1 times [2022-11-03 02:19:37,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:37,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364333190] [2022-11-03 02:19:37,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:37,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:37,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:19:37,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:37,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364333190] [2022-11-03 02:19:37,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364333190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:37,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:37,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:19:37,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540986547] [2022-11-03 02:19:37,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:37,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:19:37,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:37,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:19:37,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:37,216 INFO L87 Difference]: Start difference. First operand 645 states and 903 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:19:39,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:40,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:40,125 INFO L93 Difference]: Finished difference Result 1339 states and 1892 transitions. [2022-11-03 02:19:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:19:40,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-11-03 02:19:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:40,131 INFO L225 Difference]: With dead ends: 1339 [2022-11-03 02:19:40,132 INFO L226 Difference]: Without dead ends: 698 [2022-11-03 02:19:40,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:40,136 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 34 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:40,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1266 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 182 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 02:19:40,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-11-03 02:19:40,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 691. [2022-11-03 02:19:40,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 452 states have (on average 1.3606194690265487) internal successors, (615), 463 states have internal predecessors, (615), 179 states have call successors, (179), 61 states have call predecessors, (179), 59 states have return successors, (184), 171 states have call predecessors, (184), 176 states have call successors, (184) [2022-11-03 02:19:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 978 transitions. [2022-11-03 02:19:40,195 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 978 transitions. Word has length 35 [2022-11-03 02:19:40,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:40,195 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 978 transitions. [2022-11-03 02:19:40,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 02:19:40,196 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 978 transitions. [2022-11-03 02:19:40,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-03 02:19:40,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:40,206 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:19:40,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:19:40,206 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:40,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:40,207 INFO L85 PathProgramCache]: Analyzing trace with hash 723843051, now seen corresponding path program 1 times [2022-11-03 02:19:40,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:40,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173412003] [2022-11-03 02:19:40,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:40,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:40,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:19:40,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:40,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173412003] [2022-11-03 02:19:40,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173412003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:40,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:40,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:19:40,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017151554] [2022-11-03 02:19:40,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:40,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:19:40,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:40,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:19:40,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:19:40,717 INFO L87 Difference]: Start difference. First operand 691 states and 978 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:19:42,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:42,163 INFO L93 Difference]: Finished difference Result 750 states and 1038 transitions. [2022-11-03 02:19:42,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:19:42,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2022-11-03 02:19:42,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:42,171 INFO L225 Difference]: With dead ends: 750 [2022-11-03 02:19:42,171 INFO L226 Difference]: Without dead ends: 747 [2022-11-03 02:19:42,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:19:42,173 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 388 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:42,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1995 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 02:19:42,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2022-11-03 02:19:42,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2022-11-03 02:19:42,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 484 states have (on average 1.3471074380165289) internal successors, (652), 495 states have internal predecessors, (652), 189 states have call successors, (189), 76 states have call predecessors, (189), 73 states have return successors, (194), 181 states have call predecessors, (194), 186 states have call successors, (194) [2022-11-03 02:19:42,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1035 transitions. [2022-11-03 02:19:42,244 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1035 transitions. Word has length 43 [2022-11-03 02:19:42,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:42,245 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 1035 transitions. [2022-11-03 02:19:42,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:19:42,246 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1035 transitions. [2022-11-03 02:19:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-03 02:19:42,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:42,248 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:42,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:19:42,248 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:42,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:42,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1560851364, now seen corresponding path program 1 times [2022-11-03 02:19:42,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:42,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883248517] [2022-11-03 02:19:42,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:42,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 02:19:42,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:42,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883248517] [2022-11-03 02:19:42,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883248517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:42,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:42,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:19:42,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577808067] [2022-11-03 02:19:42,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:42,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:19:42,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:42,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:19:42,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:19:42,750 INFO L87 Difference]: Start difference. First operand 747 states and 1035 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 02:19:47,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:48,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:48,050 INFO L93 Difference]: Finished difference Result 907 states and 1258 transitions. [2022-11-03 02:19:48,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:19:48,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2022-11-03 02:19:48,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:48,060 INFO L225 Difference]: With dead ends: 907 [2022-11-03 02:19:48,061 INFO L226 Difference]: Without dead ends: 897 [2022-11-03 02:19:48,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:19:48,066 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 570 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 422 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:48,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1830 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 1103 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 02:19:48,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-11-03 02:19:48,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 872. [2022-11-03 02:19:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 566 states have (on average 1.3462897526501767) internal successors, (762), 578 states have internal predecessors, (762), 218 states have call successors, (218), 90 states have call predecessors, (218), 87 states have return successors, (223), 210 states have call predecessors, (223), 215 states have call successors, (223) [2022-11-03 02:19:48,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1203 transitions. [2022-11-03 02:19:48,135 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1203 transitions. Word has length 46 [2022-11-03 02:19:48,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:48,138 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1203 transitions. [2022-11-03 02:19:48,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 02:19:48,138 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1203 transitions. [2022-11-03 02:19:48,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-03 02:19:48,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:48,141 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:48,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:19:48,142 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:48,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:48,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1188169365, now seen corresponding path program 1 times [2022-11-03 02:19:48,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:48,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15172222] [2022-11-03 02:19:48,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:48,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:19:48,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:48,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15172222] [2022-11-03 02:19:48,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15172222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:48,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:48,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:19:48,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759632129] [2022-11-03 02:19:48,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:48,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:19:48,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:48,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:19:48,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:19:48,270 INFO L87 Difference]: Start difference. First operand 872 states and 1203 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-03 02:19:49,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:49,174 INFO L93 Difference]: Finished difference Result 1756 states and 2422 transitions. [2022-11-03 02:19:49,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:19:49,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2022-11-03 02:19:49,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:49,182 INFO L225 Difference]: With dead ends: 1756 [2022-11-03 02:19:49,182 INFO L226 Difference]: Without dead ends: 882 [2022-11-03 02:19:49,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:19:49,194 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 13 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:49,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1937 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:19:49,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-11-03 02:19:49,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 875. [2022-11-03 02:19:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 568 states have (on average 1.341549295774648) internal successors, (762), 580 states have internal predecessors, (762), 219 states have call successors, (219), 90 states have call predecessors, (219), 87 states have return successors, (224), 211 states have call predecessors, (224), 216 states have call successors, (224) [2022-11-03 02:19:49,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1205 transitions. [2022-11-03 02:19:49,286 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1205 transitions. Word has length 57 [2022-11-03 02:19:49,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:49,287 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1205 transitions. [2022-11-03 02:19:49,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-03 02:19:49,287 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1205 transitions. [2022-11-03 02:19:49,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-03 02:19:49,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:49,292 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:49,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:19:49,292 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:49,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:49,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1491442427, now seen corresponding path program 1 times [2022-11-03 02:19:49,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:49,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665495064] [2022-11-03 02:19:49,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:49,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:49,793 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 02:19:49,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:49,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665495064] [2022-11-03 02:19:49,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665495064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:49,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:49,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:19:49,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826737684] [2022-11-03 02:19:49,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:49,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:19:49,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:49,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:19:49,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:19:49,795 INFO L87 Difference]: Start difference. First operand 875 states and 1205 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-03 02:19:51,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:51,059 INFO L93 Difference]: Finished difference Result 1051 states and 1485 transitions. [2022-11-03 02:19:51,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:19:51,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 64 [2022-11-03 02:19:51,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:51,068 INFO L225 Difference]: With dead ends: 1051 [2022-11-03 02:19:51,068 INFO L226 Difference]: Without dead ends: 1048 [2022-11-03 02:19:51,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:19:51,070 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 125 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:51,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2672 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 02:19:51,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2022-11-03 02:19:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 891. [2022-11-03 02:19:51,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 578 states have (on average 1.3391003460207613) internal successors, (774), 590 states have internal predecessors, (774), 222 states have call successors, (222), 93 states have call predecessors, (222), 90 states have return successors, (227), 214 states have call predecessors, (227), 219 states have call successors, (227) [2022-11-03 02:19:51,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1223 transitions. [2022-11-03 02:19:51,163 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1223 transitions. Word has length 64 [2022-11-03 02:19:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:51,164 INFO L495 AbstractCegarLoop]: Abstraction has 891 states and 1223 transitions. [2022-11-03 02:19:51,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-03 02:19:51,164 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1223 transitions. [2022-11-03 02:19:51,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-03 02:19:51,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:51,167 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:51,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:19:51,168 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:51,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:51,168 INFO L85 PathProgramCache]: Analyzing trace with hash -790777785, now seen corresponding path program 1 times [2022-11-03 02:19:51,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:51,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963876105] [2022-11-03 02:19:51,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:51,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:51,366 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 02:19:51,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:51,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963876105] [2022-11-03 02:19:51,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963876105] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:19:51,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2172936] [2022-11-03 02:19:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:51,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:19:51,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:19:51,372 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:19:51,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc46a0c4-8478-4608-bf88-629dcb1185c6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:19:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:51,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:19:51,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:19:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:19:51,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:19:52,128 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 02:19:52,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2172936] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:19:52,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1654303046] [2022-11-03 02:19:52,151 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-11-03 02:19:52,151 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:19:52,155 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:19:52,161 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:19:52,161 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:19:55,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:19:55,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:19:55,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:19:55,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:19:55,526 INFO L244 Elim1Store]: Index analysis took 194 ms [2022-11-03 02:19:58,929 INFO L356 Elim1Store]: treesize reduction 1620, result has 18.7 percent of original size [2022-11-03 02:19:58,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 23 select indices, 23 select index equivalence classes, 179 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 97 case distinctions, treesize of input 155 treesize of output 481 [2022-11-03 02:19:59,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:19:59,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:19:59,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:19:59,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:19:59,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 235 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 165 [2022-11-03 02:20:00,238 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-03 02:20:00,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-03 02:20:00,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:01,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:01,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:01,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:01,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 235 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 67 [2022-11-03 02:20:01,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:01,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:01,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:01,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:01,149 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 23 select indices, 23 select index equivalence classes, 253 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 70 [2022-11-03 02:20:02,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:02,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:02,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:02,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:02,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 235 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 67 [2022-11-03 02:20:02,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:02,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:02,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:02,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:02,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 23 select indices, 23 select index equivalence classes, 253 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 70 [2022-11-03 02:20:07,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 78 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-03 02:20:07,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:07,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:08,874 INFO L356 Elim1Store]: treesize reduction 948, result has 30.4 percent of original size [2022-11-03 02:20:08,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 34 select indices, 34 select index equivalence classes, 407 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 35 case distinctions, treesize of input 338 treesize of output 525 [2022-11-03 02:20:09,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:09,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:10,818 INFO L356 Elim1Store]: treesize reduction 796, result has 41.6 percent of original size [2022-11-03 02:20:10,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 32 select indices, 32 select index equivalence classes, 45 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 33 case distinctions, treesize of input 266 treesize of output 662 [2022-11-03 02:20:11,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:11,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:13,954 INFO L356 Elim1Store]: treesize reduction 698, result has 48.8 percent of original size [2022-11-03 02:20:13,956 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 34 select indices, 34 select index equivalence classes, 407 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 35 case distinctions, treesize of input 338 treesize of output 775 [2022-11-03 02:20:14,607 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 76