./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS --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 c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 --- 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-8393723 [2022-11-19 07:47:26,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:47:26,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:47:26,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:47:26,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:47:26,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:47:26,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:47:26,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:47:26,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:47:26,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:47:26,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:47:26,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:47:26,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:47:26,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:47:26,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:47:26,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:47:26,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:47:26,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:47:26,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:47:26,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:47:26,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:47:26,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:47:26,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:47:26,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:47:26,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:47:26,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:47:26,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:47:26,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:47:26,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:47:26,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:47:26,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:47:26,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:47:26,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:47:26,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:47:26,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:47:26,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:47:26,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:47:26,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:47:26,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:47:26,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:47:26,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:47:26,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:47:26,568 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:47:26,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:47:26,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:47:26,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:47:26,571 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:47:26,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:47:26,571 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:47:26,571 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:47:26,572 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:47:26,572 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:47:26,573 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:47:26,573 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:47:26,573 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:47:26,573 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:47:26,574 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:47:26,574 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:47:26,574 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:47:26,574 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:47:26,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:47:26,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:47:26,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:47:26,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:47:26,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:47:26,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:47:26,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:47:26,578 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:47:26,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:47:26,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:47:26,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:47:26,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:47:26,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:47:26,579 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:47:26,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:47:26,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:47:26,580 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:47:26,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:47:26,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:47:26,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:47:26,581 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_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 [2022-11-19 07:47:26,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:47:26,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:47:26,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:47:26,882 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:47:26,883 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:47:26,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/busybox-1.22.0/basename-2.i [2022-11-19 07:47:26,964 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/data/6663dbb59/867c0578d3fc440f8a729ff6641412c5/FLAGaec09380d [2022-11-19 07:47:27,722 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:47:27,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/sv-benchmarks/c/busybox-1.22.0/basename-2.i [2022-11-19 07:47:27,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/data/6663dbb59/867c0578d3fc440f8a729ff6641412c5/FLAGaec09380d [2022-11-19 07:47:27,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/data/6663dbb59/867c0578d3fc440f8a729ff6641412c5 [2022-11-19 07:47:27,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:47:27,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:47:27,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:47:27,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:47:27,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:47:27,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:27" (1/1) ... [2022-11-19 07:47:27,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241e3e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:27, skipping insertion in model container [2022-11-19 07:47:27,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:27" (1/1) ... [2022-11-19 07:47:27,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:47:28,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:47:28,767 WARN L234 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_ba456d57-f177-4107-bedf-932484e75217/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2022-11-19 07:47:28,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:47:28,850 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:47:28,909 WARN L234 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_ba456d57-f177-4107-bedf-932484e75217/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2022-11-19 07:47:28,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:47:29,080 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:47:29,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29 WrapperNode [2022-11-19 07:47:29,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:47:29,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:47:29,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:47:29,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:47:29,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,169 INFO L138 Inliner]: procedures = 347, calls = 114, calls flagged for inlining = 10, calls inlined = 9, statements flattened = 350 [2022-11-19 07:47:29,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:47:29,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:47:29,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:47:29,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:47:29,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,239 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:47:29,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:47:29,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:47:29,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:47:29,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (1/1) ... [2022-11-19 07:47:29,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:47:29,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:47:29,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:47:29,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:47:29,384 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:47:29,385 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:47:29,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:47:29,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:47:29,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:47:29,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:47:29,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:47:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-19 07:47:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:47:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:47:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:47:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:47:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:47:29,924 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:47:29,926 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:47:30,452 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:47:30,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:47:30,637 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-19 07:47:30,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:30 BoogieIcfgContainer [2022-11-19 07:47:30,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:47:30,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:47:30,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:47:30,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:47:30,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:27" (1/3) ... [2022-11-19 07:47:30,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72aca7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:30, skipping insertion in model container [2022-11-19 07:47:30,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:29" (2/3) ... [2022-11-19 07:47:30,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72aca7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:30, skipping insertion in model container [2022-11-19 07:47:30,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:30" (3/3) ... [2022-11-19 07:47:30,654 INFO L112 eAbstractionObserver]: Analyzing ICFG basename-2.i [2022-11-19 07:47:30,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:47:30,680 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:47:30,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:47:30,753 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;@3e84089b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:47:30,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:47:30,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 37 states have (on average 1.6756756756756757) internal successors, (62), 38 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:47:30,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:47:30,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:47:30,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:47:30,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:47:30,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:47:30,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1824754057, now seen corresponding path program 1 times [2022-11-19 07:47:30,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:47:30,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712576936] [2022-11-19 07:47:30,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:30,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:47:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:31,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:47:31,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:47:31,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712576936] [2022-11-19 07:47:31,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712576936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:47:31,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:47:31,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:47:31,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317610821] [2022-11-19 07:47:31,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:47:31,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:47:31,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:47:31,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:47:31,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:47:31,335 INFO L87 Difference]: Start difference. First operand has 42 states, 37 states have (on average 1.6756756756756757) internal successors, (62), 38 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:31,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:47:31,492 INFO L93 Difference]: Finished difference Result 83 states and 131 transitions. [2022-11-19 07:47:31,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:47:31,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-19 07:47:31,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:47:31,507 INFO L225 Difference]: With dead ends: 83 [2022-11-19 07:47:31,508 INFO L226 Difference]: Without dead ends: 19 [2022-11-19 07:47:31,511 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 [2022-11-19 07:47:31,516 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:47:31,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:47:31,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-19 07:47:31,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-19 07:47:31,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:31,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-19 07:47:31,562 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2022-11-19 07:47:31,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:47:31,563 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-19 07:47:31,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-19 07:47:31,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:47:31,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:47:31,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:47:31,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:47:31,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:47:31,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:47:31,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1892865227, now seen corresponding path program 1 times [2022-11-19 07:47:31,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:47:31,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587118144] [2022-11-19 07:47:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:31,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:47:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:31,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:47:31,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:47:31,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587118144] [2022-11-19 07:47:31,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587118144] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:47:31,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588628709] [2022-11-19 07:47:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:31,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:47:31,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:47:31,791 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:47:31,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:47:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:32,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:47:32,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:47:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:47:32,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:47:32,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:47:32,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588628709] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:47:32,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1987124093] [2022-11-19 07:47:32,192 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-19 07:47:32,193 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:47:32,197 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:47:32,202 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:47:32,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:47:32,710 INFO L321 Elim1Store]: treesize reduction 198, result has 33.6 percent of original size [2022-11-19 07:47:32,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 67 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 22 case distinctions, treesize of input 72 treesize of output 149 [2022-11-19 07:47:32,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 67 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 94 [2022-11-19 07:47:32,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 07:47:32,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 07:47:32,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:32,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:32,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 57 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 182 [2022-11-19 07:47:32,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-19 07:47:33,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:47:33,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:47:33,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 57 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 190 [2022-11-19 07:47:33,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,135 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-19 07:47:33,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2022-11-19 07:47:33,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2022-11-19 07:47:33,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,802 INFO L321 Elim1Store]: treesize reduction 280, result has 15.4 percent of original size [2022-11-19 07:47:33,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 818 treesize of output 757 [2022-11-19 07:47:33,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:33,878 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:47:33,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 807 treesize of output 814 [2022-11-19 07:47:34,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2022-11-19 07:47:34,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2022-11-19 07:47:34,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:47:34,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:47:34,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:47:34,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:47:34,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 07:47:34,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 07:47:34,699 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-19 07:47:34,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2022-11-19 07:47:34,737 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-19 07:47:34,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-19 07:47:34,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:34,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2022-11-19 07:47:34,802 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 44 for LOIs [2022-11-19 07:47:34,820 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:47:35,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1987124093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:47:35,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:47:35,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 3, 4] total 13 [2022-11-19 07:47:35,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742795872] [2022-11-19 07:47:35,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:47:35,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:47:35,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:47:35,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:47:35,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:47:35,564 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 8 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:35,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:47:35,697 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-19 07:47:35,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:47:35,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-19 07:47:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:47:35,701 INFO L225 Difference]: With dead ends: 30 [2022-11-19 07:47:35,701 INFO L226 Difference]: Without dead ends: 20 [2022-11-19 07:47:35,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:47:35,703 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:47:35,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 29 Unchecked, 0.1s Time] [2022-11-19 07:47:35,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-19 07:47:35,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-19 07:47:35,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-19 07:47:35,716 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 17 [2022-11-19 07:47:35,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:47:35,717 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-19 07:47:35,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:35,717 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-19 07:47:35,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:47:35,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:47:35,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:47:35,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:47:35,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:47:35,928 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:47:35,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:47:35,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1935921655, now seen corresponding path program 1 times [2022-11-19 07:47:35,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:47:35,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676045887] [2022-11-19 07:47:35,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:35,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:47:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:36,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:47:36,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:47:36,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676045887] [2022-11-19 07:47:36,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676045887] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:47:36,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106967841] [2022-11-19 07:47:36,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:36,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:47:36,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:47:36,123 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:47:36,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:47:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:36,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:47:36,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:47:36,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:47:36,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:47:36,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106967841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:47:36,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:47:36,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:47:36,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605527168] [2022-11-19 07:47:36,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:47:36,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:47:36,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:47:36,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:47:36,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:47:36,443 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:36,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:47:36,493 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-11-19 07:47:36,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:47:36,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-19 07:47:36,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:47:36,500 INFO L225 Difference]: With dead ends: 33 [2022-11-19 07:47:36,502 INFO L226 Difference]: Without dead ends: 21 [2022-11-19 07:47:36,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:47:36,505 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:47:36,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:47:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-19 07:47:36,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-19 07:47:36,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-19 07:47:36,525 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 19 [2022-11-19 07:47:36,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:47:36,526 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-19 07:47:36,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-19 07:47:36,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:47:36,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:47:36,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:47:36,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:47:36,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:47:36,731 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:47:36,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:47:36,731 INFO L85 PathProgramCache]: Analyzing trace with hash 604678066, now seen corresponding path program 1 times [2022-11-19 07:47:36,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:47:36,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737206294] [2022-11-19 07:47:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:36,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:47:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:47:36,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:47:36,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737206294] [2022-11-19 07:47:36,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737206294] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:47:36,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815799571] [2022-11-19 07:47:36,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:36,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:47:36,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:47:36,934 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:47:36,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:47:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:37,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:47:37,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:47:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:47:37,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:47:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:47:37,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815799571] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:47:37,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [874160244] [2022-11-19 07:47:37,250 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-19 07:47:37,250 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:47:37,251 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:47:37,251 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:47:37,251 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:47:37,564 INFO L321 Elim1Store]: treesize reduction 198, result has 33.6 percent of original size [2022-11-19 07:47:37,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 67 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 22 case distinctions, treesize of input 72 treesize of output 149 [2022-11-19 07:47:37,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 67 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 94 [2022-11-19 07:47:37,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 07:47:37,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 07:47:37,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:37,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 57 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 182 [2022-11-19 07:47:37,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-19 07:47:37,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 57 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 190 [2022-11-19 07:47:37,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:37,865 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 20 [2022-11-19 07:47:37,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:47:37,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:47:38,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2022-11-19 07:47:38,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2022-11-19 07:47:38,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,434 INFO L321 Elim1Store]: treesize reduction 280, result has 15.4 percent of original size [2022-11-19 07:47:38,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 818 treesize of output 757 [2022-11-19 07:47:38,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:38,497 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:47:38,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 807 treesize of output 814 [2022-11-19 07:47:38,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2022-11-19 07:47:38,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:47:38,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2022-11-19 07:47:39,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:47:39,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:47:39,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:47:39,116 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-19 07:47:39,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2022-11-19 07:47:39,156 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-19 07:47:39,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-19 07:47:39,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 07:47:39,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:39,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2022-11-19 07:47:39,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 07:47:39,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:39,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:39,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:39,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:39,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 427 treesize of output 273 [2022-11-19 07:47:39,330 INFO L321 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-11-19 07:47:39,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 66 [2022-11-19 07:47:39,410 INFO L321 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-11-19 07:47:39,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 57 [2022-11-19 07:47:39,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:39,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:39,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 64 [2022-11-19 07:47:39,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:39,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:39,546 INFO L321 Elim1Store]: treesize reduction 28, result has 33.3 percent of original size [2022-11-19 07:47:39,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 60 [2022-11-19 07:47:39,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:39,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:39,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:39,693 INFO L321 Elim1Store]: treesize reduction 64, result has 26.4 percent of original size [2022-11-19 07:47:39,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 264 treesize of output 152 [2022-11-19 07:47:39,747 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-19 07:47:39,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 77 [2022-11-19 07:47:39,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:39,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:39,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 105 [2022-11-19 07:47:39,892 INFO L321 Elim1Store]: treesize reduction 51, result has 40.0 percent of original size [2022-11-19 07:47:39,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 161 treesize of output 130 [2022-11-19 07:47:39,933 INFO L321 Elim1Store]: treesize reduction 32, result has 41.8 percent of original size [2022-11-19 07:47:39,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 85 [2022-11-19 07:47:39,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:47:40,036 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:40,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:40,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,103 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-19 07:47:40,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 713 treesize of output 519 [2022-11-19 07:47:40,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:40,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:40,181 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-19 07:47:40,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 274 treesize of output 212 [2022-11-19 07:47:40,319 INFO L321 Elim1Store]: treesize reduction 36, result has 54.4 percent of original size [2022-11-19 07:47:40,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 227 [2022-11-19 07:47:40,397 INFO L321 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2022-11-19 07:47:40,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 195 treesize of output 183 [2022-11-19 07:47:40,550 INFO L321 Elim1Store]: treesize reduction 44, result has 60.4 percent of original size [2022-11-19 07:47:40,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 191 treesize of output 242 [2022-11-19 07:47:40,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:40,660 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-19 07:47:40,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 61 [2022-11-19 07:47:42,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:42,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:42,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:42,277 INFO L321 Elim1Store]: treesize reduction 154, result has 13.0 percent of original size [2022-11-19 07:47:42,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1993 treesize of output 1641 [2022-11-19 07:47:42,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:42,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:42,370 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-19 07:47:42,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1803 treesize of output 1797 [2022-11-19 07:47:42,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:42,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:42,502 INFO L321 Elim1Store]: treesize reduction 209, result has 14.0 percent of original size [2022-11-19 07:47:42,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1871 treesize of output 1800 [2022-11-19 07:47:43,561 INFO L321 Elim1Store]: treesize reduction 51, result has 40.0 percent of original size [2022-11-19 07:47:43,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 161 treesize of output 130 [2022-11-19 07:47:43,604 INFO L321 Elim1Store]: treesize reduction 32, result has 41.8 percent of original size [2022-11-19 07:47:43,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 85 [2022-11-19 07:47:43,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:47:43,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:43,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:43,789 INFO L321 Elim1Store]: treesize reduction 432, result has 5.1 percent of original size [2022-11-19 07:47:43,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 416 treesize of output 259 [2022-11-19 07:47:43,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:43,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:43,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:43,844 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-19 07:47:43,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 50 [2022-11-19 07:47:43,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:43,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:43,898 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:47:43,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 42 [2022-11-19 07:47:43,913 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 13 [2022-11-19 07:47:43,927 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 17 [2022-11-19 07:47:43,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:44,057 INFO L321 Elim1Store]: treesize reduction 96, result has 39.6 percent of original size [2022-11-19 07:47:44,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 229 treesize of output 170 [2022-11-19 07:47:44,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:44,133 INFO L321 Elim1Store]: treesize reduction 64, result has 42.3 percent of original size [2022-11-19 07:47:44,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 124 [2022-11-19 07:47:44,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-19 07:47:44,321 INFO L321 Elim1Store]: treesize reduction 51, result has 40.0 percent of original size [2022-11-19 07:47:44,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 161 treesize of output 130 [2022-11-19 07:47:44,363 INFO L321 Elim1Store]: treesize reduction 32, result has 41.8 percent of original size [2022-11-19 07:47:44,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 85 [2022-11-19 07:47:44,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:47:44,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:44,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:44,625 INFO L321 Elim1Store]: treesize reduction 432, result has 5.1 percent of original size [2022-11-19 07:47:44,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 416 treesize of output 259 [2022-11-19 07:47:44,641 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 13 [2022-11-19 07:47:44,653 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 17 [2022-11-19 07:47:44,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:44,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:44,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:44,700 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-19 07:47:44,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 139 treesize of output 50 [2022-11-19 07:47:44,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:44,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:44,756 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:47:44,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 42 [2022-11-19 07:47:44,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:44,890 INFO L321 Elim1Store]: treesize reduction 108, result has 39.0 percent of original size [2022-11-19 07:47:44,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 191 [2022-11-19 07:47:44,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:47:44,973 INFO L321 Elim1Store]: treesize reduction 70, result has 40.2 percent of original size [2022-11-19 07:47:44,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 150 treesize of output 140 [2022-11-19 07:47:44,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:47:44,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:47:45,135 INFO L321 Elim1Store]: treesize reduction 51, result has 40.0 percent of original size [2022-11-19 07:47:45,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 161 treesize of output 130 [2022-11-19 07:47:45,176 INFO L321 Elim1Store]: treesize reduction 32, result has 41.8 percent of original size [2022-11-19 07:47:45,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 85 [2022-11-19 07:47:45,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:47:45,218 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 44 for LOIs [2022-11-19 07:47:45,230 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:47:46,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [874160244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:47:46,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:47:46,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 3, 4] total 16 [2022-11-19 07:47:46,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954455813] [2022-11-19 07:47:46,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:47:46,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 07:47:46,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:47:46,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 07:47:46,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:47:46,512 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 11 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:46,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:47:46,802 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-11-19 07:47:46,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:47:46,803 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-19 07:47:46,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:47:46,803 INFO L225 Difference]: With dead ends: 21 [2022-11-19 07:47:46,803 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:47:46,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-11-19 07:47:46,805 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:47:46,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 21 Unchecked, 0.1s Time] [2022-11-19 07:47:46,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:47:46,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:47:46,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:47:46,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:47:46,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-11-19 07:47:46,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:47:46,808 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:47:46,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:47:46,808 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:47:46,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:47:46,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:47:46,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:47:47,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:47:47,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:47:47,546 INFO L899 garLoopResultBuilder]: For program point L1357(lines 1357 1377) no Hoare annotation was computed. [2022-11-19 07:47:47,546 INFO L899 garLoopResultBuilder]: For program point L1357-1(lines 1357 1377) no Hoare annotation was computed. [2022-11-19 07:47:47,546 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:47:47,547 INFO L902 garLoopResultBuilder]: At program point L1589(line 1589) the Hoare annotation is: true [2022-11-19 07:47:47,547 INFO L902 garLoopResultBuilder]: At program point L1589-1(line 1589) the Hoare annotation is: true [2022-11-19 07:47:47,547 INFO L895 garLoopResultBuilder]: At program point L1606-3(lines 1606 1613) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~argc~0#1| 2147483648)) (= |~#bb_errno_location~0.offset| 0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_main_~argc~0#1| 2147483647) (<= |ULTIMATE.start_main_~mem_track~0#1.offset| 0) (<= |~#dummy_utmp~0.offset| 0) (<= 0 ~applet_name~0.offset) (<= 11 |~#bb_errno_location~0.base|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~argv~0#1.offset|) (<= 0 |ULTIMATE.start_main_~mem_track~0#1.offset|) (<= ~optind~0 1) (<= ~applet_name~0.offset 0) (<= |~#bb_errno_location~0.base| 11) (= 10 |~#dummy_utmp~0.base|) (<= 0 |~#dummy_utmp~0.offset|) (<= 10 |ULTIMATE.start_main_~i~3#1|) (<= 0 |#NULL.offset|) (<= 1 ~optind~0) (<= |ULTIMATE.start_main_~argv~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~i~4#1|)) [2022-11-19 07:47:47,547 INFO L899 garLoopResultBuilder]: For program point L1491(lines 1491 1492) no Hoare annotation was computed. [2022-11-19 07:47:47,547 INFO L899 garLoopResultBuilder]: For program point L1359(lines 1359 1376) no Hoare annotation was computed. [2022-11-19 07:47:47,547 INFO L899 garLoopResultBuilder]: For program point L1362(lines 1362 1375) no Hoare annotation was computed. [2022-11-19 07:47:47,547 INFO L902 garLoopResultBuilder]: At program point L1478(lines 1462 1479) the Hoare annotation is: true [2022-11-19 07:47:47,547 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:47:47,548 INFO L902 garLoopResultBuilder]: At program point L1495(lines 1480 1496) the Hoare annotation is: true [2022-11-19 07:47:47,548 INFO L895 garLoopResultBuilder]: At program point L1611-3(lines 1611 1612) the Hoare annotation is: (and (= |~#bb_errno_location~0.offset| 0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~optind~0 1) (<= |ULTIMATE.start_main_~argc~0#1| 2147483647) (<= 0 ~applet_name~0.offset) (<= 0 |ULTIMATE.start_main_~argc~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~mem_track~0#1.offset| 0) (<= ~applet_name~0.offset 0) (= 10 |~#dummy_utmp~0.base|) (= |#NULL.offset| 0) (= |~#dummy_utmp~0.offset| 0) (= |ULTIMATE.start_main_~argv~0#1.offset| 0) (<= |ULTIMATE.start_main_~i~4#1| 2147483647) (<= 10 |ULTIMATE.start_main_~i~3#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~i~4#1|) (= |~#bb_errno_location~0.base| 11)) [2022-11-19 07:47:47,548 INFO L899 garLoopResultBuilder]: For program point L1446(lines 1446 1453) no Hoare annotation was computed. [2022-11-19 07:47:47,548 INFO L902 garLoopResultBuilder]: At program point L1446-1(lines 1446 1453) the Hoare annotation is: true [2022-11-19 07:47:47,548 INFO L899 garLoopResultBuilder]: For program point L1364(lines 1364 1374) no Hoare annotation was computed. [2022-11-19 07:47:47,548 INFO L899 garLoopResultBuilder]: For program point L1447-1(lines 1447 1453) no Hoare annotation was computed. [2022-11-19 07:47:47,548 INFO L902 garLoopResultBuilder]: At program point L1447-4(lines 1447 1453) the Hoare annotation is: true [2022-11-19 07:47:47,548 INFO L895 garLoopResultBuilder]: At program point L1596-3(lines 1596 1597) the Hoare annotation is: (and (= |~#bb_errno_location~0.offset| 0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |~#dummy_utmp~0.offset| 0) (<= 0 ~applet_name~0.offset) (<= 11 |~#bb_errno_location~0.base|) (<= |#NULL.offset| 0) (<= ~applet_name~0.offset 0) (<= |~#bb_errno_location~0.base| 11) (= 10 |~#dummy_utmp~0.base|) (<= ~applet_name~0.base 0) (<= 0 |ULTIMATE.start_main_~i~3#1|) (<= 0 |~#dummy_utmp~0.offset|) (<= 0 |#NULL.offset|) (<= 0 ~applet_name~0.base) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-19 07:47:47,549 INFO L899 garLoopResultBuilder]: For program point L1482(lines 1482 1494) no Hoare annotation was computed. [2022-11-19 07:47:47,549 INFO L899 garLoopResultBuilder]: For program point L1482-1(lines 1482 1494) no Hoare annotation was computed. [2022-11-19 07:47:47,549 INFO L899 garLoopResultBuilder]: For program point L1449(lines 1449 1450) no Hoare annotation was computed. [2022-11-19 07:47:47,549 INFO L899 garLoopResultBuilder]: For program point L1367(lines 1367 1373) no Hoare annotation was computed. [2022-11-19 07:47:47,549 INFO L902 garLoopResultBuilder]: At program point L1466-3(lines 1466 1477) the Hoare annotation is: true [2022-11-19 07:47:47,550 INFO L895 garLoopResultBuilder]: At program point L1334(lines 1334 1392) the Hoare annotation is: (let ((.cse0 (+ 8 |ULTIMATE.start___main_~argv#1.offset|))) (and (= |ULTIMATE.start___main_#in~argv#1.offset| |ULTIMATE.start_main_~argv~0#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~argc~0#1| 2147483648)) (= |~#bb_errno_location~0.offset| 0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start___main_#t~mem41#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start___main_~argv#1.base|) .cse0)) (<= |ULTIMATE.start_main_~argc~0#1| 2147483647) (<= |ULTIMATE.start_main_~mem_track~0#1.offset| 0) (<= |~#dummy_utmp~0.offset| 0) (<= 0 ~applet_name~0.offset) (not (< |ULTIMATE.start_main_~i~4#1| |ULTIMATE.start_main_~argc~0#1|)) (<= 11 |~#bb_errno_location~0.base|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~argv~0#1.offset|) (<= 0 |ULTIMATE.start_main_~mem_track~0#1.offset|) (= |ULTIMATE.start___main_~argv#1.base| |ULTIMATE.start___main_#in~argv#1.base|) (<= ~optind~0 1) (<= ~applet_name~0.offset 0) (<= |~#bb_errno_location~0.base| 11) (= 10 |~#dummy_utmp~0.base|) (= |ULTIMATE.start___main_#in~argc#1| |ULTIMATE.start_main_~argc~0#1|) (= |ULTIMATE.start___main_~argc#1| |ULTIMATE.start___main_#in~argc#1|) (<= 0 |~#dummy_utmp~0.offset|) (<= 10 |ULTIMATE.start_main_~i~3#1|) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_main_~argv~0#1.base| |ULTIMATE.start___main_#in~argv#1.base|) (<= 1 ~optind~0) (<= |ULTIMATE.start_main_~argv~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start___main_~argv#1.base|) .cse0) |ULTIMATE.start___main_#t~mem41#1.base|) (= |ULTIMATE.start___main_#in~argv#1.offset| |ULTIMATE.start___main_~argv#1.offset|) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~i~4#1|))) [2022-11-19 07:47:47,550 INFO L899 garLoopResultBuilder]: For program point L1334-1(lines 1325 1420) no Hoare annotation was computed. [2022-11-19 07:47:47,550 INFO L902 garLoopResultBuilder]: At program point L1615-3(lines 1615 1616) the Hoare annotation is: true [2022-11-19 07:47:47,550 INFO L899 garLoopResultBuilder]: For program point L1351-1(lines 1351 1385) no Hoare annotation was computed. [2022-11-19 07:47:47,551 INFO L899 garLoopResultBuilder]: For program point L1484(lines 1484 1493) no Hoare annotation was computed. [2022-11-19 07:47:47,551 INFO L899 garLoopResultBuilder]: For program point L1501-1(lines 1501 1509) no Hoare annotation was computed. [2022-11-19 07:47:47,551 INFO L902 garLoopResultBuilder]: At program point L1501-3(lines 1501 1509) the Hoare annotation is: true [2022-11-19 07:47:47,551 INFO L899 garLoopResultBuilder]: For program point L1369(lines 1369 1372) no Hoare annotation was computed. [2022-11-19 07:47:47,551 INFO L902 garLoopResultBuilder]: At program point L1501-4(lines 1501 1509) the Hoare annotation is: true [2022-11-19 07:47:47,552 INFO L902 garLoopResultBuilder]: At program point L1419(lines 1324 1420) the Hoare annotation is: true [2022-11-19 07:47:47,552 INFO L899 garLoopResultBuilder]: For program point L1469(lines 1469 1474) no Hoare annotation was computed. [2022-11-19 07:47:47,552 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1371) no Hoare annotation was computed. [2022-11-19 07:47:47,552 INFO L895 garLoopResultBuilder]: At program point L1602(line 1602) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |~#bb_errno_location~0.base|) |~#bb_errno_location~0.offset|))) (and (<= 0 (+ |ULTIMATE.start_main_~argc~0#1| 2147483648)) (= |~#bb_errno_location~0.offset| 0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~optind~0 1) (<= .cse0 2147483647) (<= |ULTIMATE.start_main_~argc~0#1| 2147483647) (= |ULTIMATE.start_main_~a~0#1.offset| ~applet_name~0.offset) (<= 0 (+ .cse0 2147483648)) (= ~applet_name~0.base |ULTIMATE.start_main_~a~0#1.base|) (= 10 |~#dummy_utmp~0.base|) (= |#NULL.offset| 0) (= |~#dummy_utmp~0.offset| 0) (<= 10 |ULTIMATE.start_main_~i~3#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= |~#bb_errno_location~0.base| 11))) [2022-11-19 07:47:47,553 INFO L899 garLoopResultBuilder]: For program point L1602-1(line 1602) no Hoare annotation was computed. [2022-11-19 07:47:47,553 INFO L899 garLoopResultBuilder]: For program point L1371(line 1371) no Hoare annotation was computed. [2022-11-19 07:47:47,553 INFO L899 garLoopResultBuilder]: For program point L1338-2(lines 1335 1392) no Hoare annotation was computed. [2022-11-19 07:47:47,553 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 8 10) the Hoare annotation is: true [2022-11-19 07:47:47,553 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2022-11-19 07:47:47,557 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-19 07:47:47,559 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:47:47,586 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:47:47,587 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:47:47,589 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:47:47,590 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:47:47,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:47:47 BoogieIcfgContainer [2022-11-19 07:47:47,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:47:47,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:47:47,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:47:47,593 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:47:47,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:30" (3/4) ... [2022-11-19 07:47:47,597 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:47:47,603 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-19 07:47:47,611 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2022-11-19 07:47:47,612 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-19 07:47:47,612 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-19 07:47:47,613 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:47:47,613 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:47:47,614 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:47:47,640 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((argv == argv && 0 <= argc + 2147483648) && bb_errno_location == 0) && a == 0) && 1l + argv == #memory_$Pointer$[argv][8 + argv]) && argc <= 2147483647) && mem_track <= 0) && dummy_utmp <= 0) && 0 <= applet_name) && !(i < argc)) && 11 <= bb_errno_location) && #NULL <= 0) && 0 <= argv) && 0 <= mem_track) && argv == argv) && optind <= 1) && applet_name <= 0) && bb_errno_location <= 11) && 10 == dummy_utmp) && \old(argc) == argc) && argc == \old(argc)) && 0 <= dummy_utmp) && 10 <= i) && 0 <= #NULL) && argv == argv) && 1 <= optind) && argv <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #memory_$Pointer$[argv][8 + argv] == 1l + argv) && argv == argv) && #NULL == 0) && 0 <= i [2022-11-19 07:47:47,672 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:47:47,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:47:47,673 INFO L158 Benchmark]: Toolchain (without parser) took 19712.22ms. Allocated memory was 107.0MB in the beginning and 394.3MB in the end (delta: 287.3MB). Free memory was 76.0MB in the beginning and 223.7MB in the end (delta: -147.6MB). Peak memory consumption was 139.3MB. Max. memory is 16.1GB. [2022-11-19 07:47:47,673 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:47:47,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1114.92ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 75.8MB in the beginning and 100.1MB in the end (delta: -24.2MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2022-11-19 07:47:47,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.55ms. Allocated memory is still 132.1MB. Free memory was 100.1MB in the beginning and 95.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:47:47,674 INFO L158 Benchmark]: Boogie Preprocessor took 79.53ms. Allocated memory is still 132.1MB. Free memory was 95.9MB in the beginning and 92.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:47:47,675 INFO L158 Benchmark]: RCFGBuilder took 1391.82ms. Allocated memory is still 132.1MB. Free memory was 92.6MB in the beginning and 89.8MB in the end (delta: 2.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-19 07:47:47,675 INFO L158 Benchmark]: TraceAbstraction took 16947.42ms. Allocated memory was 132.1MB in the beginning and 394.3MB in the end (delta: 262.1MB). Free memory was 89.3MB in the beginning and 229.9MB in the end (delta: -140.7MB). Peak memory consumption was 121.5MB. Max. memory is 16.1GB. [2022-11-19 07:47:47,675 INFO L158 Benchmark]: Witness Printer took 79.96ms. Allocated memory is still 394.3MB. Free memory was 229.9MB in the beginning and 223.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 07:47:47,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1114.92ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 75.8MB in the beginning and 100.1MB in the end (delta: -24.2MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.55ms. Allocated memory is still 132.1MB. Free memory was 100.1MB in the beginning and 95.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.53ms. Allocated memory is still 132.1MB. Free memory was 95.9MB in the beginning and 92.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1391.82ms. Allocated memory is still 132.1MB. Free memory was 92.6MB in the beginning and 89.8MB in the end (delta: 2.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 16947.42ms. Allocated memory was 132.1MB in the beginning and 394.3MB in the end (delta: 262.1MB). Free memory was 89.3MB in the beginning and 229.9MB in the end (delta: -140.7MB). Peak memory consumption was 121.5MB. Max. memory is 16.1GB. * Witness Printer took 79.96ms. Allocated memory is still 394.3MB. Free memory was 229.9MB in the beginning and 223.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1371]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 151 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 50 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 67 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 20 PreInvPairs, 38 NumberOfFragments, 364 HoareAnnotationTreeSize, 20 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 455 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1208 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 9/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 10.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 18, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 35, TOOLS_POST_TIME: 9.8s, TOOLS_POST_CALL_APPLICATIONS: 6, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 45, TOOLS_QUANTIFIERELIM_TIME: 9.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 1.7s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 107, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 10, DOMAIN_WIDEN_TIME: 0.5s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 17, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 18, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 7, LOOP_SUMMARIZER_CACHE_MISSES: 7, LOOP_SUMMARIZER_OVERALL_TIME: 8.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 8.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 17, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 388, DAG_COMPRESSION_RETAINED_NODES: 100, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1501]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1611]: Loop Invariant Derived loop invariant: (((((((((((((((((bb_errno_location == 0 && a == 0) && optind == 1) && argc <= 2147483647) && 0 <= applet_name) && 0 <= argc) && 0 <= j) && mem_track == 0) && applet_name <= 0) && 10 == dummy_utmp) && #NULL == 0) && dummy_utmp == 0) && argv == 0) && i <= 2147483647) && 10 <= i) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 0 <= i) && bb_errno_location == 11 - InvariantResult [Line: 1462]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1615]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1596]: Loop Invariant Derived loop invariant: ((((((((((((((bb_errno_location == 0 && a == 0) && dummy_utmp <= 0) && 0 <= applet_name) && 11 <= bb_errno_location) && #NULL <= 0) && applet_name <= 0) && bb_errno_location <= 11) && 10 == dummy_utmp) && applet_name <= 0) && 0 <= i) && 0 <= dummy_utmp) && 0 <= #NULL) && 0 <= applet_name) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 1606]: Loop Invariant Derived loop invariant: (((((((((((((((((((((0 <= argc + 2147483648 && bb_errno_location == 0) && a == 0) && argc <= 2147483647) && mem_track <= 0) && dummy_utmp <= 0) && 0 <= applet_name) && 11 <= bb_errno_location) && #NULL <= 0) && 0 <= argv) && 0 <= mem_track) && optind <= 1) && applet_name <= 0) && bb_errno_location <= 11) && 10 == dummy_utmp) && 0 <= dummy_utmp) && 10 <= i) && 0 <= #NULL) && 1 <= optind) && argv <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 0 <= i - InvariantResult [Line: 1447]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1324]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1334]: Loop Invariant [2022-11-19 07:47:47,689 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:47:47,690 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-19 07:47:47,691 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-19 07:47:47,691 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((((((((((((((((((((((((((((argv == argv && 0 <= argc + 2147483648) && bb_errno_location == 0) && a == 0) && 1l + argv == #memory_$Pointer$[argv][8 + argv]) && argc <= 2147483647) && mem_track <= 0) && dummy_utmp <= 0) && 0 <= applet_name) && !(i < argc)) && 11 <= bb_errno_location) && #NULL <= 0) && 0 <= argv) && 0 <= mem_track) && argv == argv) && optind <= 1) && applet_name <= 0) && bb_errno_location <= 11) && 10 == dummy_utmp) && \old(argc) == argc) && argc == \old(argc)) && 0 <= dummy_utmp) && 10 <= i) && 0 <= #NULL) && argv == argv) && 1 <= optind) && argv <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #memory_$Pointer$[argv][8 + argv] == 1l + argv) && argv == argv) && #NULL == 0) && 0 <= i - InvariantResult [Line: 1501]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1466]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1480]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1446]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:47:47,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba456d57-f177-4107-bedf-932484e75217/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE