./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE --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 32bit --witnessprinter.graph.data.programhash c51b17720ce1dad8733576d816f307564aabdff8c7a86cf8d9848ed8571cafd2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:18:28,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:18:28,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:18:28,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:18:28,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:18:28,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:18:28,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:18:28,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:18:28,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:18:28,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:18:28,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:18:28,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:18:28,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:18:28,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:18:28,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:18:28,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:18:28,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:18:28,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:18:28,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:18:28,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:18:28,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:18:28,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:18:28,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:18:28,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:18:28,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:18:28,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:18:28,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:18:29,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:18:29,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:18:29,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:18:29,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:18:29,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:18:29,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:18:29,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:18:29,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:18:29,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:18:29,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:18:29,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:18:29,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:18:29,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:18:29,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:18:29,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 11:18:29,037 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:18:29,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:18:29,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:18:29,038 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:18:29,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:18:29,039 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:18:29,039 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 11:18:29,040 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:18:29,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:18:29,040 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 11:18:29,041 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 11:18:29,041 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:18:29,041 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 11:18:29,042 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 11:18:29,042 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 11:18:29,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:18:29,043 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:18:29,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 11:18:29,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:18:29,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:18:29,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:18:29,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:18:29,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:18:29,045 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:18:29,046 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:18:29,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:18:29,046 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:18:29,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:18:29,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:18:29,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:18:29,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:18:29,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:18:29,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:18:29,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:18:29,049 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 11:18:29,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 11:18:29,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:18:29,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:18:29,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:18:29,050 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c51b17720ce1dad8733576d816f307564aabdff8c7a86cf8d9848ed8571cafd2 [2021-10-24 11:18:29,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:18:29,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:18:29,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:18:29,354 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:18:29,355 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:18:29,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c [2021-10-24 11:18:29,449 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/data/069c67d80/e29c9a516b4847068c3c3e7a2ffc8a4f/FLAG997564bf8 [2021-10-24 11:18:29,894 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:18:29,895 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c [2021-10-24 11:18:29,905 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/data/069c67d80/e29c9a516b4847068c3c3e7a2ffc8a4f/FLAG997564bf8 [2021-10-24 11:18:30,274 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/data/069c67d80/e29c9a516b4847068c3c3e7a2ffc8a4f [2021-10-24 11:18:30,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:18:30,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:18:30,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:18:30,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:18:30,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:18:30,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1abad282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30, skipping insertion in model container [2021-10-24 11:18:30,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:18:30,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:18:30,440 WARN L228 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_f446c540-c797-41df-824a-7a3498201de0/sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c[414,427] [2021-10-24 11:18:30,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:18:30,462 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:18:30,474 WARN L228 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_f446c540-c797-41df-824a-7a3498201de0/sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c[414,427] [2021-10-24 11:18:30,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:18:30,517 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:18:30,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30 WrapperNode [2021-10-24 11:18:30,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:18:30,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:18:30,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:18:30,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:18:30,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:18:30,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:18:30,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:18:30,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:18:30,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:18:30,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:18:30,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:18:30,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:18:30,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (1/1) ... [2021-10-24 11:18:30,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:18:30,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:18:30,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:18:30,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:18:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 11:18:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:18:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 11:18:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:18:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:18:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 11:18:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 11:18:31,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:18:31,025 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-24 11:18:31,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:18:31 BoogieIcfgContainer [2021-10-24 11:18:31,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:18:31,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:18:31,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:18:31,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:18:31,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:18:30" (1/3) ... [2021-10-24 11:18:31,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a979ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:18:31, skipping insertion in model container [2021-10-24 11:18:31,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:18:30" (2/3) ... [2021-10-24 11:18:31,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a979ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:18:31, skipping insertion in model container [2021-10-24 11:18:31,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:18:31" (3/3) ... [2021-10-24 11:18:31,037 INFO L111 eAbstractionObserver]: Analyzing ICFG array_init_var_plus_ind.c [2021-10-24 11:18:31,043 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:18:31,044 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 11:18:31,112 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:18:31,135 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 11:18:31,136 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 11:18:31,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 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) [2021-10-24 11:18:31,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 11:18:31,162 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:31,163 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 11:18:31,163 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:31,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:31,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1868223123, now seen corresponding path program 1 times [2021-10-24 11:18:31,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:31,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738771600] [2021-10-24 11:18:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:31,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:31,348 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:18:31,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738771600] [2021-10-24 11:18:31,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738771600] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 11:18:31,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:18:31,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 11:18:31,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483460065] [2021-10-24 11:18:31,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 11:18:31,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:18:31,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 11:18:31,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:18:31,379 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-24 11:18:31,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:31,423 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2021-10-24 11:18:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:18:31,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2021-10-24 11:18:31,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:31,435 INFO L225 Difference]: With dead ends: 26 [2021-10-24 11:18:31,435 INFO L226 Difference]: Without dead ends: 17 [2021-10-24 11:18:31,439 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:18:31,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-24 11:18:31,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 10. [2021-10-24 11:18:31,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2021-10-24 11:18:31,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-24 11:18:31,474 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2021-10-24 11:18:31,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:31,475 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-24 11:18:31,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-24 11:18:31,475 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-10-24 11:18:31,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 11:18:31,476 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:31,476 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:31,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 11:18:31,477 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:31,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:31,478 INFO L82 PathProgramCache]: Analyzing trace with hash 947313280, now seen corresponding path program 1 times [2021-10-24 11:18:31,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:31,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30451947] [2021-10-24 11:18:31,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:31,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:31,550 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:18:31,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30451947] [2021-10-24 11:18:31,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30451947] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 11:18:31,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:18:31,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 11:18:31,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380401733] [2021-10-24 11:18:31,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:18:31,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:18:31,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:18:31,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:18:31,555 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-10-24 11:18:31,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:31,606 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-10-24 11:18:31,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 11:18:31,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2021-10-24 11:18:31,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:31,608 INFO L225 Difference]: With dead ends: 18 [2021-10-24 11:18:31,608 INFO L226 Difference]: Without dead ends: 11 [2021-10-24 11:18:31,609 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:18:31,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-24 11:18:31,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-24 11:18:31,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2021-10-24 11:18:31,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-10-24 11:18:31,613 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2021-10-24 11:18:31,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:31,614 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-24 11:18:31,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-10-24 11:18:31,614 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-10-24 11:18:31,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 11:18:31,615 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:31,615 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:31,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 11:18:31,616 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:31,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:31,616 INFO L82 PathProgramCache]: Analyzing trace with hash 362824998, now seen corresponding path program 1 times [2021-10-24 11:18:31,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:31,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686410904] [2021-10-24 11:18:31,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:31,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:31,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:31,717 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:18:31,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686410904] [2021-10-24 11:18:31,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686410904] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 11:18:31,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164673059] [2021-10-24 11:18:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:31,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:31,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:18:31,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:18:31,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-24 11:18:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:31,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 11:18:31,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:31,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:31,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:32,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164673059] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:18:32,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [268055162] [2021-10-24 11:18:32,035 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-24 11:18:32,035 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 11:18:32,040 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 11:18:32,046 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 11:18:32,046 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 11:18:32,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,084 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:32,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:32,089 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:32,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-24 11:18:32,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 11:18:32,122 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 36=[|v_#valid_28|]} [2021-10-24 11:18:32,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-24 11:18:32,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:32,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:32,167 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:32,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:32,213 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-24 11:18:32,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:32,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:32,262 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:32,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:32,324 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,328 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-24 11:18:32,332 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:32,332 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-24 11:18:32,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-24 11:18:32,384 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-24 11:18:32,396 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:32,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:18:32,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-10-24 11:18:32,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:18:32,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:32,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:32,438 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:32,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:32,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-10-24 11:18:32,457 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:32,457 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:158, output treesize:154 [2021-10-24 11:18:32,464 INFO L180 QuantifierPusher]: treesize reduction 11, result has 93.5 percent of original size [2021-10-24 11:18:32,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-10-24 11:18:32,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:32,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:32,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:32,670 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.9 percent of original size [2021-10-24 11:18:32,699 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:32,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,714 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:32,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:18:32,720 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:32,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-24 11:18:32,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-10-24 11:18:32,732 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:32,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-10-24 11:18:32,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 388 [2021-10-24 11:18:32,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:18:32,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:32,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:32,808 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:32,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:32,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 63 [2021-10-24 11:18:32,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-24 11:18:32,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-24 11:18:32,863 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:32,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:32,911 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,934 INFO L180 QuantifierPusher]: treesize reduction 120, result has 74.5 percent of original size [2021-10-24 11:18:32,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-10-24 11:18:32,942 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 11:18:32,942 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:479, output treesize:351 [2021-10-24 11:18:32,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:32,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-10-24 11:18:32,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,082 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:33,086 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:33,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:33,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:33,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:33,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:33,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:33,102 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:33,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,105 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:33,108 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:33,109 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:33,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-24 11:18:33,127 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:33,130 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:33,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:33,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:33,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:33,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:33,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:33,146 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:33,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,149 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:33,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:33,152 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:33,152 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:33,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:33,335 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 11:18:34,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 11:18:34,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 11:18:34,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2021-10-24 11:18:34,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321388964] [2021-10-24 11:18:34,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 11:18:34,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:18:34,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 11:18:34,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-10-24 11:18:34,936 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-10-24 11:18:35,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:35,007 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-10-24 11:18:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 11:18:35,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 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) Word has length 8 [2021-10-24 11:18:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:35,008 INFO L225 Difference]: With dead ends: 36 [2021-10-24 11:18:35,008 INFO L226 Difference]: Without dead ends: 28 [2021-10-24 11:18:35,011 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1661.2ms TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-10-24 11:18:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-24 11:18:35,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 16. [2021-10-24 11:18:35,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 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) [2021-10-24 11:18:35,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-24 11:18:35,018 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 8 [2021-10-24 11:18:35,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:35,018 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-24 11:18:35,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-10-24 11:18:35,020 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-10-24 11:18:35,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 11:18:35,021 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:35,021 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:35,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-24 11:18:35,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:35,251 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:35,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:35,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1925995406, now seen corresponding path program 1 times [2021-10-24 11:18:35,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:35,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354878261] [2021-10-24 11:18:35,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:35,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:35,375 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:18:35,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354878261] [2021-10-24 11:18:35,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354878261] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 11:18:35,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719971976] [2021-10-24 11:18:35,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:35,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:35,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:18:35,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:18:35,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-24 11:18:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:35,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-24 11:18:35,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:35,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-10-24 11:18:35,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-10-24 11:18:35,654 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:35,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:35,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2021-10-24 11:18:35,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-10-24 11:18:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:35,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719971976] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:18:35,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [694405015] [2021-10-24 11:18:35,802 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-24 11:18:35,802 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 11:18:35,802 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 11:18:35,802 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 11:18:35,804 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 11:18:35,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:35,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:35,822 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:35,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-24 11:18:35,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 11:18:35,836 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 36=[|v_#valid_29|]} [2021-10-24 11:18:35,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-24 11:18:35,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:35,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:35,863 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:35,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:35,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-24 11:18:35,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:35,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:35,918 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:35,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:35,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-24 11:18:35,928 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:35,929 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-24 11:18:35,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-24 11:18:35,943 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-24 11:18:35,946 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:35,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 11:18:35,950 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-24 11:18:35,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:35,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-24 11:18:35,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:18:35,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:18:35,969 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:35,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:35,976 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,979 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-24 11:18:35,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-24 11:18:35,983 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:35,983 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-24 11:18:35,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:35,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-24 11:18:35,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,077 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-24 11:18:36,091 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:36,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,097 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:36,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:18:36,104 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:36,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-24 11:18:36,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-10-24 11:18:36,114 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:36,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-10-24 11:18:36,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 [2021-10-24 11:18:36,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:36,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:36,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:36,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-10-24 11:18:36,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 11:18:36,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 11:18:36,171 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:36,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:36,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:36,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:18:36,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:36,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:36,197 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:36,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,236 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,249 INFO L180 QuantifierPusher]: treesize reduction 128, result has 71.9 percent of original size [2021-10-24 11:18:36,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-10-24 11:18:36,255 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 11:18:36,256 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:328 [2021-10-24 11:18:36,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 334 [2021-10-24 11:18:36,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,336 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,356 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:36,363 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:36,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:36,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:36,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:36,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:36,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:36,383 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:36,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,386 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:36,391 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:36,391 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:36,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-24 11:18:36,428 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:36,437 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:36,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:36,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:36,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:36,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:36,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:36,455 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:36,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,458 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:36,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:36,462 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:36,462 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:36,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:36,518 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 11:18:37,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 11:18:37,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 11:18:37,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2021-10-24 11:18:37,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867603033] [2021-10-24 11:18:37,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 11:18:37,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:18:37,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 11:18:37,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-10-24 11:18:37,842 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-24 11:18:37,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:37,950 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-10-24 11:18:37,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-24 11:18:37,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 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) Word has length 11 [2021-10-24 11:18:37,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:37,951 INFO L225 Difference]: With dead ends: 29 [2021-10-24 11:18:37,952 INFO L226 Difference]: Without dead ends: 27 [2021-10-24 11:18:37,952 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1446.7ms TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-10-24 11:18:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-24 11:18:37,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2021-10-24 11:18:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 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) [2021-10-24 11:18:37,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-10-24 11:18:37,956 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 11 [2021-10-24 11:18:37,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:37,956 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-24 11:18:37,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-24 11:18:37,956 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-10-24 11:18:37,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-24 11:18:37,957 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:37,957 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:37,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:38,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-24 11:18:38,158 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:38,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:38,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1306013557, now seen corresponding path program 2 times [2021-10-24 11:18:38,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:38,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869194618] [2021-10-24 11:18:38,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:38,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:38,322 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:38,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:18:38,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869194618] [2021-10-24 11:18:38,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869194618] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 11:18:38,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220696317] [2021-10-24 11:18:38,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 11:18:38,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:38,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:18:38,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:18:38,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-24 11:18:38,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-24 11:18:38,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:18:38,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-24 11:18:38,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:38,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 26 [2021-10-24 11:18:38,532 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-24 11:18:38,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 38 treesize of output 37 [2021-10-24 11:18:38,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-10-24 11:18:38,617 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:38,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:38,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-24 11:18:38,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 183 [2021-10-24 11:18:38,835 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:38,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220696317] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:18:38,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [140961359] [2021-10-24 11:18:38,837 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-24 11:18:38,838 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 11:18:38,838 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 11:18:38,838 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 11:18:38,838 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 11:18:38,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,846 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:38,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-24 11:18:38,848 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:38,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:38,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 11:18:38,853 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 36=[|v_#valid_30|]} [2021-10-24 11:18:38,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-24 11:18:38,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:38,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:38,875 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:38,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:38,880 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-24 11:18:38,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:38,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:38,915 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:38,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:38,920 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-24 11:18:38,924 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:38,924 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-24 11:18:38,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,933 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-24 11:18:38,938 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-24 11:18:38,940 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:38,941 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 11:18:38,944 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-24 11:18:38,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:38,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-24 11:18:38,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:18:38,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:18:38,961 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:38,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:38,967 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,970 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-24 11:18:38,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-24 11:18:38,973 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:38,973 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-24 11:18:38,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:38,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-24 11:18:38,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:38,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,044 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-24 11:18:39,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:39,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,059 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:39,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:18:39,062 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:39,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-24 11:18:39,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-10-24 11:18:39,070 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:39,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-24 11:18:39,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 378 [2021-10-24 11:18:39,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:39,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:39,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:39,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-24 11:18:39,116 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:18:39,118 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:18:39,120 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:39,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:39,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:39,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:18:39,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:39,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:39,138 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:39,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,178 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,191 INFO L180 QuantifierPusher]: treesize reduction 129, result has 72.0 percent of original size [2021-10-24 11:18:39,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-10-24 11:18:39,197 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 11:18:39,198 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:469, output treesize:332 [2021-10-24 11:18:39,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-10-24 11:18:39,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,281 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:39,283 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:39,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:39,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:39,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:39,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:39,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:39,293 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:39,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,296 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:39,298 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:39,299 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:39,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-24 11:18:39,314 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:39,316 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:39,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:39,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:39,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:39,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:39,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:39,331 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:39,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,333 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:39,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:39,336 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:39,336 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:39,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:39,387 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 11:18:40,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 11:18:40,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 11:18:40,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2021-10-24 11:18:40,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357614975] [2021-10-24 11:18:40,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-24 11:18:40,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:18:40,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-24 11:18:40,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2021-10-24 11:18:40,508 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-10-24 11:18:40,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:40,681 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-10-24 11:18:40,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 11:18:40,681 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 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) Word has length 13 [2021-10-24 11:18:40,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:40,682 INFO L225 Difference]: With dead ends: 25 [2021-10-24 11:18:40,682 INFO L226 Difference]: Without dead ends: 23 [2021-10-24 11:18:40,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1329.8ms TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-10-24 11:18:40,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-24 11:18:40,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2021-10-24 11:18:40,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 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) [2021-10-24 11:18:40,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-24 11:18:40,686 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2021-10-24 11:18:40,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:40,686 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-24 11:18:40,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-10-24 11:18:40,686 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-24 11:18:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-24 11:18:40,687 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:40,687 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:40,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:40,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-24 11:18:40,888 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:40,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:40,888 INFO L82 PathProgramCache]: Analyzing trace with hash 866156038, now seen corresponding path program 1 times [2021-10-24 11:18:40,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:40,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133566313] [2021-10-24 11:18:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:40,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:40,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:18:40,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133566313] [2021-10-24 11:18:40,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133566313] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 11:18:40,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81254610] [2021-10-24 11:18:40,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:40,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:40,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:18:40,950 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:18:40,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-24 11:18:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:41,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-24 11:18:41,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:41,106 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:41,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:41,147 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:41,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81254610] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:18:41,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [855165837] [2021-10-24 11:18:41,150 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-24 11:18:41,150 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 11:18:41,151 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 11:18:41,151 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 11:18:41,151 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 11:18:41,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,161 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:41,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-24 11:18:41,163 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:41,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:41,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 11:18:41,171 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 36=[|v_#valid_31|]} [2021-10-24 11:18:41,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-24 11:18:41,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:41,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:41,193 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,201 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-24 11:18:41,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:41,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:41,239 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-24 11:18:41,248 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,248 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-24 11:18:41,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-24 11:18:41,272 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-24 11:18:41,274 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:41,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 11:18:41,277 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-24 11:18:41,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-24 11:18:41,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:18:41,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:18:41,291 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,297 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,299 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-24 11:18:41,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-24 11:18:41,301 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,302 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-24 11:18:41,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-24 11:18:41,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,360 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-24 11:18:41,369 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:41,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,377 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:41,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:18:41,380 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:41,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-24 11:18:41,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-10-24 11:18:41,386 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:41,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-10-24 11:18:41,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 [2021-10-24 11:18:41,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-10-24 11:18:41,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 11:18:41,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 11:18:41,460 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:41,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:18:41,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:41,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:41,479 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,515 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,528 INFO L180 QuantifierPusher]: treesize reduction 128, result has 71.9 percent of original size [2021-10-24 11:18:41,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-10-24 11:18:41,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 11:18:41,535 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:328 [2021-10-24 11:18:41,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 334 [2021-10-24 11:18:41,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,604 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:41,605 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:41,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:41,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:41,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:41,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,614 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:41,614 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,614 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:41,615 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,617 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:41,619 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,619 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:41,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-24 11:18:41,632 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-24 11:18:41,635 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.9 percent of original size 93 [2021-10-24 11:18:41,638 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size [2021-10-24 11:18:41,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-10-24 11:18:41,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,674 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:18:41,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:41,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-24 11:18:41,692 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:18:41,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:41,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,747 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:41,749 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:41,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:41,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:41,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:41,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:41,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:41,759 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,762 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:41,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:41,764 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:41,764 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:41,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:41,803 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 11:18:43,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 11:18:43,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 11:18:43,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2021-10-24 11:18:43,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107070234] [2021-10-24 11:18:43,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 11:18:43,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:18:43,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 11:18:43,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-10-24 11:18:43,014 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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) [2021-10-24 11:18:43,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:43,058 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-10-24 11:18:43,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 11:18:43,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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) Word has length 14 [2021-10-24 11:18:43,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:43,060 INFO L225 Difference]: With dead ends: 28 [2021-10-24 11:18:43,061 INFO L226 Difference]: Without dead ends: 18 [2021-10-24 11:18:43,061 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1241.6ms TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-10-24 11:18:43,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-24 11:18:43,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-24 11:18:43,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2021-10-24 11:18:43,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-10-24 11:18:43,075 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 14 [2021-10-24 11:18:43,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:43,075 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-10-24 11:18:43,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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) [2021-10-24 11:18:43,076 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-10-24 11:18:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 11:18:43,077 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:43,077 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:43,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:43,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:43,290 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:43,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:43,290 INFO L82 PathProgramCache]: Analyzing trace with hash -653734721, now seen corresponding path program 2 times [2021-10-24 11:18:43,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:43,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264116897] [2021-10-24 11:18:43,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:43,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:43,486 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:18:43,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264116897] [2021-10-24 11:18:43,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264116897] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 11:18:43,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128807603] [2021-10-24 11:18:43,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 11:18:43,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:43,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:18:43,488 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:18:43,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-24 11:18:43,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-24 11:18:43,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:18:43,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-24 11:18:43,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:43,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 23 [2021-10-24 11:18:43,929 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-24 11:18:43,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 39 [2021-10-24 11:18:43,952 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:43,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:44,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-10-24 11:18:44,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2021-10-24 11:18:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:44,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128807603] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:18:44,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1975809818] [2021-10-24 11:18:44,408 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-24 11:18:44,408 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 11:18:44,409 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 11:18:44,409 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 11:18:44,409 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 11:18:44,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,415 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:44,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:44,417 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:44,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-24 11:18:44,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 11:18:44,422 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 36=[|v_#valid_32|]} [2021-10-24 11:18:44,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-24 11:18:44,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:44,443 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:44,444 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,449 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-24 11:18:44,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:44,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:44,477 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-24 11:18:44,485 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,485 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-24 11:18:44,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-24 11:18:44,495 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-24 11:18:44,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:44,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 11:18:44,501 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-24 11:18:44,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-24 11:18:44,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:18:44,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:18:44,515 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,520 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,522 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-24 11:18:44,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-24 11:18:44,524 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,525 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-24 11:18:44,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-24 11:18:44,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,585 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-24 11:18:44,593 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:44,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,598 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:44,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,599 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-24 11:18:44,600 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:44,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:18:44,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-10-24 11:18:44,605 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:44,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-24 11:18:44,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 378 [2021-10-24 11:18:44,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-24 11:18:44,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:18:44,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:18:44,646 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:44,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:18:44,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:44,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:44,666 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,698 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,731 INFO L180 QuantifierPusher]: treesize reduction 129, result has 72.0 percent of original size [2021-10-24 11:18:44,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-10-24 11:18:44,738 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 11:18:44,738 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:469, output treesize:332 [2021-10-24 11:18:44,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-10-24 11:18:44,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,816 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:44,817 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:44,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:44,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:44,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:44,826 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:44,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:44,828 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,830 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:44,833 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,833 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:44,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-24 11:18:44,848 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-24 11:18:44,851 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.9 percent of original size 93 [2021-10-24 11:18:44,855 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size [2021-10-24 11:18:44,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-10-24 11:18:44,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,892 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:18:44,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:44,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-24 11:18:44,911 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:18:44,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:44,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,967 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:44,968 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:44,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:44,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:44,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:44,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:44,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:44,979 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,981 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:44,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:44,984 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:44,984 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:44,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:44,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:45,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:45,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:45,034 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 11:18:46,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 11:18:46,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 11:18:46,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2021-10-24 11:18:46,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934858722] [2021-10-24 11:18:46,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-24 11:18:46,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:18:46,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-24 11:18:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2021-10-24 11:18:46,324 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 21 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 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) [2021-10-24 11:18:46,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:46,625 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-10-24 11:18:46,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 11:18:46,626 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 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) Word has length 16 [2021-10-24 11:18:46,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:46,626 INFO L225 Difference]: With dead ends: 29 [2021-10-24 11:18:46,626 INFO L226 Difference]: Without dead ends: 19 [2021-10-24 11:18:46,627 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1700.0ms TimeCoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2021-10-24 11:18:46,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-24 11:18:46,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-24 11:18:46,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2021-10-24 11:18:46,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-10-24 11:18:46,631 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2021-10-24 11:18:46,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:46,632 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-10-24 11:18:46,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 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) [2021-10-24 11:18:46,632 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-10-24 11:18:46,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 11:18:46,633 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:46,633 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:46,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:46,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-10-24 11:18:46,834 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:46,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:46,834 INFO L82 PathProgramCache]: Analyzing trace with hash -802103325, now seen corresponding path program 1 times [2021-10-24 11:18:46,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:46,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640461669] [2021-10-24 11:18:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:46,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-24 11:18:46,901 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:18:46,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640461669] [2021-10-24 11:18:46,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640461669] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 11:18:46,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73543522] [2021-10-24 11:18:46,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:46,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:46,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:18:46,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:18:46,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-24 11:18:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:47,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 11:18:47,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-24 11:18:47,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-24 11:18:47,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73543522] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:18:47,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2000293223] [2021-10-24 11:18:47,276 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-24 11:18:47,276 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 11:18:47,276 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 11:18:47,276 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 11:18:47,277 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 11:18:47,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,284 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:47,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-24 11:18:47,285 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:47,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:47,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 11:18:47,291 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 36=[|v_#valid_33|]} [2021-10-24 11:18:47,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-24 11:18:47,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:47,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:47,317 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,322 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-24 11:18:47,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:47,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:47,355 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,360 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-24 11:18:47,365 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,365 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-24 11:18:47,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-24 11:18:47,390 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-24 11:18:47,393 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:47,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:18:47,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-10-24 11:18:47,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:18:47,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:47,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:47,415 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,421 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-10-24 11:18:47,426 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,427 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:158, output treesize:154 [2021-10-24 11:18:47,431 INFO L180 QuantifierPusher]: treesize reduction 11, result has 93.5 percent of original size [2021-10-24 11:18:47,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-10-24 11:18:47,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,506 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.9 percent of original size [2021-10-24 11:18:47,516 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:47,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,521 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:47,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-24 11:18:47,523 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:47,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:18:47,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-10-24 11:18:47,531 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:47,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-10-24 11:18:47,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 388 [2021-10-24 11:18:47,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:18:47,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:47,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:47,570 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:47,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 63 [2021-10-24 11:18:47,592 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-24 11:18:47,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-24 11:18:47,595 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,628 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,646 INFO L180 QuantifierPusher]: treesize reduction 117, result has 75.0 percent of original size [2021-10-24 11:18:47,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-10-24 11:18:47,654 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 11:18:47,655 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:479, output treesize:351 [2021-10-24 11:18:47,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-10-24 11:18:47,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,739 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:47,740 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:47,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,741 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:47,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:47,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:47,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:47,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:47,751 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,754 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:47,756 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,756 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:47,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-24 11:18:47,766 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:47,768 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:47,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:47,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:47,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:47,776 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:47,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:47,778 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,780 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:47,782 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:47,782 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:47,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 369 [2021-10-24 11:18:47,891 INFO L180 QuantifierPusher]: treesize reduction 8, result has 98.0 percent of original size [2021-10-24 11:18:47,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-10-24 11:18:47,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:47,971 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.8 percent of original size [2021-10-24 11:18:47,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-10-24 11:18:47,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:47,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-10-24 11:18:47,992 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.8 percent of original size [2021-10-24 11:18:47,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-10-24 11:18:47,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:48,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:48,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:48,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:48,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:48,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:48,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:48,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:48,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:48,046 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 11:18:49,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 11:18:49,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 11:18:49,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2021-10-24 11:18:49,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123024353] [2021-10-24 11:18:49,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-24 11:18:49,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:18:49,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-24 11:18:49,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2021-10-24 11:18:49,391 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 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) [2021-10-24 11:18:49,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:49,488 INFO L93 Difference]: Finished difference Result 86 states and 99 transitions. [2021-10-24 11:18:49,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 11:18:49,494 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 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) Word has length 17 [2021-10-24 11:18:49,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:49,499 INFO L225 Difference]: With dead ends: 86 [2021-10-24 11:18:49,499 INFO L226 Difference]: Without dead ends: 78 [2021-10-24 11:18:49,500 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1442.3ms TimeCoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2021-10-24 11:18:49,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-24 11:18:49,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 30. [2021-10-24 11:18:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 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) [2021-10-24 11:18:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-10-24 11:18:49,521 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 17 [2021-10-24 11:18:49,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:49,522 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-24 11:18:49,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 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) [2021-10-24 11:18:49,522 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2021-10-24 11:18:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 11:18:49,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:49,524 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:18:49,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:49,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:49,738 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:49,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:49,738 INFO L82 PathProgramCache]: Analyzing trace with hash -979873480, now seen corresponding path program 3 times [2021-10-24 11:18:49,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:49,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61072305] [2021-10-24 11:18:49,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:49,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:49,889 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:49,889 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:18:49,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61072305] [2021-10-24 11:18:49,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61072305] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 11:18:49,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338497019] [2021-10-24 11:18:49,890 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-24 11:18:49,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:49,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:18:49,898 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:18:49,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-24 11:18:50,073 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-24 11:18:50,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:18:50,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-24 11:18:50,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:50,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 20 [2021-10-24 11:18:50,175 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-10-24 11:18:50,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 24 [2021-10-24 11:18:50,238 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-10-24 11:18:50,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 43 [2021-10-24 11:18:50,475 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 11:18:50,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 30 [2021-10-24 11:18:50,508 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:50,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:51,777 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~j~0_65 Int) (v_ULTIMATE.start_main_~i~0_80 Int)) (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|) (+ |c_ULTIMATE.start_main_~#a~0.offset| (* c_ULTIMATE.start_main_~i~0 4)) c_ULTIMATE.start_main_~j~0) (+ |c_ULTIMATE.start_main_~#a~0.offset| (* v_ULTIMATE.start_main_~i~0_80 4)) v_ULTIMATE.start_main_~j~0_65))) (or (< v_ULTIMATE.start_main_~i~0_80 (+ c_ULTIMATE.start_main_~i~0 1)) (<= 0 (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0.offset| 8))) (< (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0.offset| 4)) 0) (<= v_ULTIMATE.start_main_~i~0_80 1)))) is different from false [2021-10-24 11:18:51,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 72 [2021-10-24 11:18:51,848 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-24 11:18:51,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 590 treesize of output 578 [2021-10-24 11:18:52,123 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-10-24 11:18:52,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338497019] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:18:52,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1083096474] [2021-10-24 11:18:52,126 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-24 11:18:52,126 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 11:18:52,127 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 11:18:52,127 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 11:18:52,127 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 11:18:52,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,133 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:52,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:52,135 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:52,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-24 11:18:52,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 11:18:52,140 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 36=[|v_#valid_34|]} [2021-10-24 11:18:52,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-24 11:18:52,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:52,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:52,164 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,177 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-24 11:18:52,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:52,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:52,255 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,260 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-24 11:18:52,277 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,278 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-24 11:18:52,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-24 11:18:52,292 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-24 11:18:52,294 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:52,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-24 11:18:52,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-24 11:18:52,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-24 11:18:52,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-24 11:18:52,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-24 11:18:52,318 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,324 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-10-24 11:18:52,329 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,329 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:150, output treesize:146 [2021-10-24 11:18:52,334 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.7 percent of original size [2021-10-24 11:18:52,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-10-24 11:18:52,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,405 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-24 11:18:52,415 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:52,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,420 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:52,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:18:52,422 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:52,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-24 11:18:52,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-10-24 11:18:52,429 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:52,433 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-10-24 11:18:52,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 380 [2021-10-24 11:18:52,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-24 11:18:52,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:18:52,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:18:52,476 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:52,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:18:52,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:52,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:52,498 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,529 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,548 INFO L180 QuantifierPusher]: treesize reduction 118, result has 74.5 percent of original size [2021-10-24 11:18:52,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-10-24 11:18:52,555 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 11:18:52,556 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:471, output treesize:345 [2021-10-24 11:18:52,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-10-24 11:18:52,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,638 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:52,640 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:52,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,641 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:52,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:52,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:52,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:52,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:52,651 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,654 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:52,656 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,657 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:52,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-24 11:18:52,672 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-24 11:18:52,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-10-24 11:18:52,678 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.0 percent of original size [2021-10-24 11:18:52,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-10-24 11:18:52,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,722 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:18:52,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:52,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-24 11:18:52,741 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:18:52,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:52,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,792 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:52,793 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:52,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:52,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:52,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:52,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:52,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:52,804 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,806 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:52,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:52,808 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:52,808 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:52,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:52,848 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 11:18:54,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 11:18:54,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 11:18:54,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 26 [2021-10-24 11:18:54,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8763213] [2021-10-24 11:18:54,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-24 11:18:54,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:18:54,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-24 11:18:54,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=933, Unknown=1, NotChecked=62, Total=1122 [2021-10-24 11:18:54,650 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 27 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 26 states have internal predecessors, (47), 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) [2021-10-24 11:18:55,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:55,206 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2021-10-24 11:18:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 11:18:55,206 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 26 states have internal predecessors, (47), 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) Word has length 18 [2021-10-24 11:18:55,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:55,208 INFO L225 Difference]: With dead ends: 37 [2021-10-24 11:18:55,208 INFO L226 Difference]: Without dead ends: 35 [2021-10-24 11:18:55,210 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 3517.5ms TimeCoverageRelationStatistics Valid=244, Invalid=1481, Unknown=1, NotChecked=80, Total=1806 [2021-10-24 11:18:55,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-24 11:18:55,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-10-24 11:18:55,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 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) [2021-10-24 11:18:55,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2021-10-24 11:18:55,217 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 18 [2021-10-24 11:18:55,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:55,218 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-10-24 11:18:55,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 26 states have internal predecessors, (47), 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) [2021-10-24 11:18:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2021-10-24 11:18:55,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 11:18:55,219 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:55,219 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 1, 1, 1, 1, 1] [2021-10-24 11:18:55,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:55,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable180 [2021-10-24 11:18:55,435 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:55,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:55,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1486991388, now seen corresponding path program 4 times [2021-10-24 11:18:55,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:55,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112653575] [2021-10-24 11:18:55,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:55,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:55,730 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:55,730 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:18:55,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112653575] [2021-10-24 11:18:55,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112653575] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 11:18:55,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070653866] [2021-10-24 11:18:55,731 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-24 11:18:55,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:18:55,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:18:55,732 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:18:55,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-24 11:18:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:18:55,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-24 11:18:55,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:18:56,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-10-24 11:18:56,449 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-24 11:18:56,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 34 [2021-10-24 11:18:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:56,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:18:56,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2021-10-24 11:18:56,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-10-24 11:18:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:18:56,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070653866] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:18:56,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1709454339] [2021-10-24 11:18:56,795 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-24 11:18:56,795 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 11:18:56,795 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 11:18:56,796 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 11:18:56,796 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 11:18:56,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,802 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:56,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:56,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:56,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-24 11:18:56,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 11:18:56,809 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_20|], 36=[|v_#valid_35|]} [2021-10-24 11:18:56,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-24 11:18:56,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:56,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:18:56,836 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:56,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:56,841 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-24 11:18:56,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:56,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:18:56,875 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:56,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:56,880 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-24 11:18:56,884 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:56,885 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-24 11:18:56,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-24 11:18:56,898 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-24 11:18:56,900 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:56,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 11:18:56,904 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-24 11:18:56,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:56,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-24 11:18:56,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:18:56,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:18:56,921 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:56,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:56,928 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,930 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-24 11:18:56,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-24 11:18:56,933 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:56,934 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-24 11:18:56,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:56,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-24 11:18:56,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:56,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:56,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,003 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-24 11:18:57,013 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:57,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,018 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:57,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-24 11:18:57,021 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:57,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,022 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:18:57,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-10-24 11:18:57,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:57,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-24 11:18:57,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 378 [2021-10-24 11:18:57,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:57,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:57,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:57,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-24 11:18:57,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:18:57,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:18:57,083 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:57,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:57,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:18:57,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:18:57,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:57,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:18:57,108 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:57,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,144 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,157 INFO L180 QuantifierPusher]: treesize reduction 129, result has 72.0 percent of original size [2021-10-24 11:18:57,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-10-24 11:18:57,163 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 11:18:57,163 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:469, output treesize:332 [2021-10-24 11:18:57,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-10-24 11:18:57,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,266 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:57,268 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:57,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:57,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:57,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:57,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:57,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:57,279 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:57,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,281 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:57,284 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:57,284 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:57,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-24 11:18:57,304 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-24 11:18:57,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-10-24 11:18:57,317 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.0 percent of original size [2021-10-24 11:18:57,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-10-24 11:18:57,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,358 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:18:57,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:57,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-24 11:18:57,378 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:18:57,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:57,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,429 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:18:57,431 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:18:57,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:18:57,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:18:57,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:18:57,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:57,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:18:57,441 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:18:57,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,443 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:18:57,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:18:57,446 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:18:57,446 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:18:57,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:18:57,491 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 11:18:59,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 11:18:59,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 11:18:59,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2021-10-24 11:18:59,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138658692] [2021-10-24 11:18:59,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-24 11:18:59,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:18:59,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-24 11:18:59,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2021-10-24 11:18:59,149 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 25 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 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) [2021-10-24 11:18:59,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:18:59,605 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2021-10-24 11:18:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-24 11:18:59,606 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 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) Word has length 21 [2021-10-24 11:18:59,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:18:59,607 INFO L225 Difference]: With dead ends: 46 [2021-10-24 11:18:59,607 INFO L226 Difference]: Without dead ends: 33 [2021-10-24 11:18:59,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 2271.7ms TimeCoverageRelationStatistics Valid=157, Invalid=1249, Unknown=0, NotChecked=0, Total=1406 [2021-10-24 11:18:59,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-24 11:18:59,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-24 11:18:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 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) [2021-10-24 11:18:59,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2021-10-24 11:18:59,613 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 21 [2021-10-24 11:18:59,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:18:59,614 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2021-10-24 11:18:59,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 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) [2021-10-24 11:18:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2021-10-24 11:18:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-24 11:18:59,615 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:18:59,615 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 3, 2, 2, 1, 1, 1, 1, 1] [2021-10-24 11:18:59,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-24 11:18:59,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable211 [2021-10-24 11:18:59,822 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:18:59,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:18:59,822 INFO L82 PathProgramCache]: Analyzing trace with hash -73461949, now seen corresponding path program 5 times [2021-10-24 11:18:59,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:18:59,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956414784] [2021-10-24 11:18:59,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:18:59,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:18:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:19:00,164 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:19:00,164 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:19:00,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956414784] [2021-10-24 11:19:00,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956414784] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 11:19:00,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438676532] [2021-10-24 11:19:00,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 11:19:00,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:19:00,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:19:00,166 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:19:00,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-24 11:19:00,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-24 11:19:00,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:19:00,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-24 11:19:00,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:19:00,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 13 [2021-10-24 11:19:00,603 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-24 11:19:00,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 27 [2021-10-24 11:19:00,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-10-24 11:19:00,829 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:19:00,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:19:01,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-24 11:19:01,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 183 [2021-10-24 11:19:01,353 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:19:01,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438676532] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:19:01,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [819100122] [2021-10-24 11:19:01,355 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-24 11:19:01,356 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 11:19:01,356 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 11:19:01,356 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 11:19:01,356 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 11:19:01,361 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,362 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:01,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-24 11:19:01,364 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:01,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:19:01,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 11:19:01,369 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_21|], 36=[|v_#valid_36|]} [2021-10-24 11:19:01,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-24 11:19:01,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:19:01,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:19:01,396 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,401 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-24 11:19:01,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:19:01,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:19:01,456 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,485 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-24 11:19:01,489 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,489 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-24 11:19:01,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-24 11:19:01,504 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-24 11:19:01,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:01,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 11:19:01,509 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-24 11:19:01,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-24 11:19:01,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:19:01,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-24 11:19:01,521 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,526 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,528 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-24 11:19:01,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-24 11:19:01,530 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,530 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-24 11:19:01,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-24 11:19:01,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,598 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-24 11:19:01,605 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:01,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,609 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:01,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:19:01,610 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:01,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-24 11:19:01,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-10-24 11:19:01,615 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:01,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-24 11:19:01,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 378 [2021-10-24 11:19:01,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:19:01,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:19:01,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:19:01,648 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:01,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-24 11:19:01,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:19:01,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,668 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:19:01,669 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,697 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,707 INFO L180 QuantifierPusher]: treesize reduction 129, result has 72.0 percent of original size [2021-10-24 11:19:01,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-10-24 11:19:01,712 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 11:19:01,712 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:469, output treesize:332 [2021-10-24 11:19:01,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-10-24 11:19:01,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,782 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:19:01,784 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:01,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:19:01,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:19:01,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:19:01,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:19:01,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:19:01,794 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,797 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:19:01,799 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,799 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:19:01,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-24 11:19:01,813 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-24 11:19:01,816 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.9 percent of original size 93 [2021-10-24 11:19:01,819 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size [2021-10-24 11:19:01,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-10-24 11:19:01,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,855 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:19:01,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:19:01,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-24 11:19:01,872 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:19:01,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:19:01,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,933 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:19:01,934 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:01,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:19:01,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:19:01,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:19:01,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:19:01,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:19:01,944 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,947 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:01,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:19:01,949 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:19:01,949 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:19:01,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:01,990 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 11:19:03,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 11:19:03,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 11:19:03,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2021-10-24 11:19:03,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787885431] [2021-10-24 11:19:03,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-24 11:19:03,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:19:03,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-24 11:19:03,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2021-10-24 11:19:03,597 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 31 states, 31 states have (on average 2.129032258064516) internal successors, (66), 30 states have internal predecessors, (66), 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) [2021-10-24 11:19:04,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:19:04,226 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2021-10-24 11:19:04,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-24 11:19:04,227 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.129032258064516) internal successors, (66), 30 states have internal predecessors, (66), 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) Word has length 23 [2021-10-24 11:19:04,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:19:04,228 INFO L225 Difference]: With dead ends: 40 [2021-10-24 11:19:04,228 INFO L226 Difference]: Without dead ends: 38 [2021-10-24 11:19:04,229 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 2560.6ms TimeCoverageRelationStatistics Valid=238, Invalid=1924, Unknown=0, NotChecked=0, Total=2162 [2021-10-24 11:19:04,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-24 11:19:04,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2021-10-24 11:19:04,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 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) [2021-10-24 11:19:04,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-10-24 11:19:04,234 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 23 [2021-10-24 11:19:04,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:19:04,234 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-10-24 11:19:04,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.129032258064516) internal successors, (66), 30 states have internal predecessors, (66), 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) [2021-10-24 11:19:04,235 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2021-10-24 11:19:04,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 11:19:04,236 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:19:04,236 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 4, 3, 3, 1, 1, 1, 1, 1] [2021-10-24 11:19:04,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-24 11:19:04,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:19:04,458 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:19:04,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:19:04,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1933521457, now seen corresponding path program 6 times [2021-10-24 11:19:04,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:19:04,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576139259] [2021-10-24 11:19:04,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:19:04,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:19:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:19:04,699 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:19:04,699 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:19:04,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576139259] [2021-10-24 11:19:04,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576139259] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 11:19:04,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851429028] [2021-10-24 11:19:04,700 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-24 11:19:04,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:19:04,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:19:04,702 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:19:04,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-24 11:19:04,947 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-24 11:19:04,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:19:04,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-24 11:19:04,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:19:05,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 20 [2021-10-24 11:19:05,093 INFO L354 Elim1Store]: treesize reduction 42, result has 22.2 percent of original size [2021-10-24 11:19:05,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 39 [2021-10-24 11:19:05,177 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-10-24 11:19:05,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 58 [2021-10-24 11:19:06,061 INFO L354 Elim1Store]: treesize reduction 166, result has 4.0 percent of original size [2021-10-24 11:19:06,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 56 [2021-10-24 11:19:06,111 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:19:06,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:19:14,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 85 [2021-10-24 11:19:14,284 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-10-24 11:19:14,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2012 treesize of output 1960 [2021-10-24 11:19:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 43 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:19:14,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851429028] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:19:14,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1063055958] [2021-10-24 11:19:14,824 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-24 11:19:14,824 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 11:19:14,825 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 11:19:14,825 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 11:19:14,825 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 11:19:14,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,835 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:14,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-24 11:19:14,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:14,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:19:14,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-24 11:19:14,843 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_22|], 36=[|v_#valid_37|]} [2021-10-24 11:19:14,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-24 11:19:14,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:19:14,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-24 11:19:14,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:14,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:14,872 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-24 11:19:14,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:19:14,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 11:19:14,906 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:14,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:14,910 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-24 11:19:14,914 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:19:14,914 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-24 11:19:14,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-24 11:19:14,926 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-24 11:19:14,943 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:14,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-24 11:19:14,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-24 11:19:14,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:14,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-24 11:19:14,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-24 11:19:14,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-24 11:19:14,971 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:14,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:14,976 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:14,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-10-24 11:19:14,981 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:19:14,981 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:150, output treesize:146 [2021-10-24 11:19:14,984 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.7 percent of original size [2021-10-24 11:19:14,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-10-24 11:19:14,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,064 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-24 11:19:15,075 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:15,078 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,079 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:15,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-24 11:19:15,082 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:15,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-24 11:19:15,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-10-24 11:19:15,087 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:15,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-10-24 11:19:15,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 380 [2021-10-24 11:19:15,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:15,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:15,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-24 11:19:15,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:19:15,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 11:19:15,133 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:15,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:15,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:15,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:19:15,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-24 11:19:15,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:19:15,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-24 11:19:15,161 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:15,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,197 INFO L180 QuantifierPusher]: treesize reduction 118, result has 74.5 percent of original size [2021-10-24 11:19:15,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-10-24 11:19:15,202 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-24 11:19:15,203 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:471, output treesize:345 [2021-10-24 11:19:15,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-10-24 11:19:15,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,276 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:19:15,277 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:15,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:19:15,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:19:15,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:19:15,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:19:15,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:19:15,288 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:15,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:19:15,292 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:19:15,292 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:19:15,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-24 11:19:15,306 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-24 11:19:15,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-10-24 11:19:15,312 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.0 percent of original size [2021-10-24 11:19:15,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-10-24 11:19:15,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,350 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:19:15,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:19:15,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-24 11:19:15,374 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-24 11:19:15,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:19:15,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,426 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-24 11:19:15,427 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 11:19:15,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 11:19:15,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-24 11:19:15,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 [2021-10-24 11:19:15,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:19:15,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 11:19:15,455 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 11:19:15,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,457 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:19:15,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 11:19:15,459 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 11:19:15,460 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-24 11:19:15,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,467 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:19:15,498 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 11:19:17,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 11:19:17,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-24 11:19:17,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 14] total 34 [2021-10-24 11:19:17,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842442785] [2021-10-24 11:19:17,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-24 11:19:17,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:19:17,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-24 11:19:17,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1507, Unknown=6, NotChecked=0, Total=1722 [2021-10-24 11:19:17,069 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 35 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 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) [2021-10-24 11:19:28,790 WARN L207 SmtUtils]: Spent 11.23 s on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-10-24 11:19:40,717 WARN L207 SmtUtils]: Spent 8.79 s on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-10-24 11:20:01,868 WARN L207 SmtUtils]: Spent 10.10 s on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-10-24 11:20:17,925 WARN L207 SmtUtils]: Spent 12.89 s on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-10-24 11:20:39,044 WARN L207 SmtUtils]: Spent 10.06 s on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-10-24 11:20:59,569 WARN L207 SmtUtils]: Spent 12.60 s on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2021-10-24 11:21:03,014 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|)) (.cse8 (* c_ULTIMATE.start_main_~k~0 4))) (let ((.cse3 (<= 0 (select .cse7 (+ |c_ULTIMATE.start_main_~#a~0.offset| 8 .cse8)))) (.cse4 (<= c_ULTIMATE.start_main_~i~0 (+ c_ULTIMATE.start_main_~k~0 2)))) (and (forall ((v_ULTIMATE.start_main_~j~0_103 Int) (v_ULTIMATE.start_main_~k~0_62 Int)) (let ((.cse0 (let ((.cse2 (* c_ULTIMATE.start_main_~i~0 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|) (+ |c_ULTIMATE.start_main_~#a~0.offset| .cse2) c_ULTIMATE.start_main_~j~0) (+ |c_ULTIMATE.start_main_~#a~0.offset| 4 .cse2) v_ULTIMATE.start_main_~j~0_103))) (.cse1 (* v_ULTIMATE.start_main_~k~0_62 4))) (or (< (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~#a~0.offset|)) 0) (<= 0 (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~#a~0.offset| 8))) (< v_ULTIMATE.start_main_~k~0_62 2) (< v_ULTIMATE.start_main_~j~0_103 (+ c_ULTIMATE.start_main_~j~0 c_ULTIMATE.start_main_~i~0)) (<= c_ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~k~0_62)))) (or .cse3 (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond) .cse4) (forall ((v_ULTIMATE.start_main_~k~0_62 Int)) (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|)) (.cse6 (* v_ULTIMATE.start_main_~k~0_62 4))) (or (< v_ULTIMATE.start_main_~k~0_62 (+ c_ULTIMATE.start_main_~k~0 1)) (<= 0 (select .cse5 (+ .cse6 |c_ULTIMATE.start_main_~#a~0.offset| 8))) (< (select .cse5 (+ .cse6 |c_ULTIMATE.start_main_~#a~0.offset|)) 0) (<= c_ULTIMATE.start_main_~i~0 (+ 2 v_ULTIMATE.start_main_~k~0_62))))) (or .cse3 (< (select .cse7 (+ |c_ULTIMATE.start_main_~#a~0.offset| .cse8)) 0) .cse4)))) is different from false [2021-10-24 11:21:13,668 WARN L207 SmtUtils]: Spent 10.57 s on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2021-10-24 11:21:24,501 WARN L207 SmtUtils]: Spent 10.27 s on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-10-24 11:21:35,785 WARN L207 SmtUtils]: Spent 9.27 s on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-10-24 11:21:36,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:21:36,926 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2021-10-24 11:21:36,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-24 11:21:36,927 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 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) Word has length 26 [2021-10-24 11:21:36,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:21:36,928 INFO L225 Difference]: With dead ends: 50 [2021-10-24 11:21:36,928 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 11:21:36,929 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 129531.3ms TimeCoverageRelationStatistics Valid=551, Invalid=3471, Unknown=14, NotChecked=124, Total=4160 [2021-10-24 11:21:36,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 11:21:36,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 11:21:36,930 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) [2021-10-24 11:21:36,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 11:21:36,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-10-24 11:21:36,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:21:36,930 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 11:21:36,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 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) [2021-10-24 11:21:36,931 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 11:21:36,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 11:21:36,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:21:36,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-24 11:21:37,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:21:37,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 11:21:37,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:21:37,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:22:16,541 WARN L207 SmtUtils]: Spent 39.34 s on a formula simplification. DAG size of input: 190 DAG size of output: 117 [2021-10-24 11:22:23,727 WARN L207 SmtUtils]: Spent 7.18 s on a formula simplification. DAG size of input: 144 DAG size of output: 103 [2021-10-24 11:22:23,730 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 11:22:23,730 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-24 11:22:23,731 INFO L853 garLoopResultBuilder]: At program point L17-3(lines 17 22) the Hoare annotation is: (let ((.cse3 (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|)) (.cse5 (* ULTIMATE.start_main_~i~0 4))) (let ((.cse13 (select .cse3 (+ |ULTIMATE.start_main_~#a~0.offset| (- 4) .cse5)))) (let ((.cse7 (<= (+ (select .cse3 (+ |ULTIMATE.start_main_~#a~0.offset| (- 8) .cse5)) ULTIMATE.start_main_~i~0) (+ 2 .cse13))) (.cse6 (exists ((v_ULTIMATE.start_main_~i~0_36 Int)) (and (<= 1 v_ULTIMATE.start_main_~i~0_36) (<= v_ULTIMATE.start_main_~i~0_36 1) (<= (+ v_ULTIMATE.start_main_~i~0_36 1) ULTIMATE.start_main_~i~0) (<= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ (* v_ULTIMATE.start_main_~i~0_36 4) |ULTIMATE.start_main_~#a~0.offset|)))))) (.cse4 (= |ULTIMATE.start_main_~#a~0.offset| 0)) (.cse11 (<= 100000 ~N~0)) (.cse12 (<= (+ ULTIMATE.start_main_~i~0 .cse13) (+ ULTIMATE.start_main_~j~0 1)))) (or (and (forall ((v_ULTIMATE.start_main_~j~0_103 Int) (v_ULTIMATE.start_main_~k~0_62 Int)) (let ((.cse0 (let ((.cse2 (* ULTIMATE.start_main_~i~0 4))) (store (store (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| .cse2) ULTIMATE.start_main_~j~0) (+ |ULTIMATE.start_main_~#a~0.offset| 4 .cse2) v_ULTIMATE.start_main_~j~0_103))) (.cse1 (* v_ULTIMATE.start_main_~k~0_62 4))) (or (< (select .cse0 (+ .cse1 |ULTIMATE.start_main_~#a~0.offset|)) 0) (<= 0 (select .cse0 (+ .cse1 |ULTIMATE.start_main_~#a~0.offset| 8))) (< v_ULTIMATE.start_main_~k~0_62 2) (< v_ULTIMATE.start_main_~j~0_103 (+ ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~i~0)) (<= ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~k~0_62)))) (<= 4 ULTIMATE.start_main_~i~0) (<= (+ (select .cse3 (+ |ULTIMATE.start_main_~#a~0.offset| 4)) 1) (select .cse3 (+ |ULTIMATE.start_main_~#a~0.offset| 8))) .cse4 (<= 3 (select (store .cse3 (+ |ULTIMATE.start_main_~#a~0.offset| .cse5) ULTIMATE.start_main_~j~0) 12)) .cse6) (and .cse4 (<= 0 ULTIMATE.start_main_~i~0) (= ULTIMATE.start_main_~j~0 0) (<= ULTIMATE.start_main_~i~0 0) (<= (+ ULTIMATE.start_main_~i~0 100000) ~N~0)) (and .cse4 .cse7 (exists ((v_ULTIMATE.start_main_~i~0_117 Int)) (let ((.cse9 (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|)) (.cse10 (* v_ULTIMATE.start_main_~i~0_117 4))) (let ((.cse8 (select .cse9 (+ |ULTIMATE.start_main_~#a~0.offset| (- 4) .cse10)))) (and (<= (+ v_ULTIMATE.start_main_~i~0_117 .cse8) (+ (select .cse9 (+ |ULTIMATE.start_main_~#a~0.offset| .cse10)) 1)) (<= ULTIMATE.start_main_~i~0 (+ v_ULTIMATE.start_main_~i~0_117 1)) (<= (+ v_ULTIMATE.start_main_~i~0_117 (select .cse9 (+ |ULTIMATE.start_main_~#a~0.offset| .cse10 (- 8)))) (+ 2 .cse8)) (<= v_ULTIMATE.start_main_~i~0_117 4))))) .cse11 (<= ULTIMATE.start_main_~i~0 3) .cse6 .cse12) (and .cse4 .cse7 .cse11 (<= ULTIMATE.start_main_~i~0 2) .cse6 .cse12) (and .cse4 .cse11 (= ULTIMATE.start_main_~i~0 1) .cse12 (<= 0 ULTIMATE.start_main_~j~0)))))) [2021-10-24 11:22:23,731 INFO L857 garLoopResultBuilder]: For program point L17-4(lines 17 22) no Hoare annotation was computed. [2021-10-24 11:22:23,731 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 11:22:23,731 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-10-24 11:22:23,732 INFO L853 garLoopResultBuilder]: At program point L24-3(lines 24 25) the Hoare annotation is: (let ((.cse2 (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|))) (let ((.cse11 (<= 2 ULTIMATE.start_main_~k~0)) (.cse5 (<= ULTIMATE.start_main_~i~0 2)) (.cse10 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse12 (exists ((v_ULTIMATE.start_main_~i~0_55 Int)) (and (<= ULTIMATE.start_main_~i~0 (+ v_ULTIMATE.start_main_~i~0_55 1)) (<= 1 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* v_ULTIMATE.start_main_~i~0_55 4)))) (<= v_ULTIMATE.start_main_~i~0_55 2)))) (.cse0 (<= (+ (select .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| 4)) 1) (select .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| 8)))) (.cse1 (= |ULTIMATE.start_main_~#a~0.offset| 0)) (.cse9 (<= 3 (select (store .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4)) ULTIMATE.start_main_~j~0) 12))) (.cse3 (exists ((v_ULTIMATE.start_main_~i~0_36 Int)) (and (<= 1 v_ULTIMATE.start_main_~i~0_36) (<= v_ULTIMATE.start_main_~i~0_36 1) (<= (+ v_ULTIMATE.start_main_~i~0_36 1) ULTIMATE.start_main_~i~0) (<= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ (* v_ULTIMATE.start_main_~i~0_36 4) |ULTIMATE.start_main_~#a~0.offset|)))))) (.cse4 (= ULTIMATE.start_main_~k~0 1))) (or (and .cse0 (<= ULTIMATE.start_main_~i~0 4) .cse1 (<= 3 (select .cse2 12)) .cse3 .cse4) (and .cse5 .cse3 .cse4) (and (<= ULTIMATE.start_main_~i~0 1) (<= 100000 ~N~0) .cse4) (let ((.cse6 (* ULTIMATE.start_main_~k~0 4))) (and (or (<= 0 (select .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| 8 .cse6))) (<= ULTIMATE.start_main_~i~0 (+ ULTIMATE.start_main_~k~0 2))) (<= 4 ULTIMATE.start_main_~i~0) .cse0 .cse1 (forall ((v_ULTIMATE.start_main_~k~0_62 Int)) (let ((.cse7 (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|)) (.cse8 (* v_ULTIMATE.start_main_~k~0_62 4))) (or (< v_ULTIMATE.start_main_~k~0_62 (+ ULTIMATE.start_main_~k~0 1)) (<= 0 (select .cse7 (+ .cse8 |ULTIMATE.start_main_~#a~0.offset| 8))) (< (select .cse7 (+ .cse8 |ULTIMATE.start_main_~#a~0.offset|)) 0) (<= ULTIMATE.start_main_~i~0 (+ 2 v_ULTIMATE.start_main_~k~0_62))))) .cse9 (or (<= 0 (select .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| .cse6 4))) (<= ULTIMATE.start_main_~i~0 (+ ULTIMATE.start_main_~k~0 1))) .cse3 .cse10 (or (<= 0 (select .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| .cse6))) (<= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0)))) (and .cse11 .cse12 .cse3 .cse10) (and .cse11 .cse5 .cse3 .cse10) (and (<= ULTIMATE.start_main_~i~0 0) .cse4) (and .cse12 .cse3 .cse4) (and (forall ((v_ULTIMATE.start_main_~j~0_103 Int) (v_ULTIMATE.start_main_~k~0_62 Int)) (let ((.cse13 (let ((.cse15 (* ULTIMATE.start_main_~i~0 4))) (store (store (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| .cse15) ULTIMATE.start_main_~j~0) (+ |ULTIMATE.start_main_~#a~0.offset| 4 .cse15) v_ULTIMATE.start_main_~j~0_103))) (.cse14 (* v_ULTIMATE.start_main_~k~0_62 4))) (or (< (select .cse13 (+ .cse14 |ULTIMATE.start_main_~#a~0.offset|)) 0) (<= 0 (select .cse13 (+ .cse14 |ULTIMATE.start_main_~#a~0.offset| 8))) (< v_ULTIMATE.start_main_~k~0_62 2) (< v_ULTIMATE.start_main_~j~0_103 (+ ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~i~0)) (<= ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~k~0_62)))) .cse0 .cse1 .cse9 .cse3 .cse4)))) [2021-10-24 11:22:23,732 INFO L857 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-10-24 11:22:23,732 INFO L857 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2021-10-24 11:22:23,732 INFO L857 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2021-10-24 11:22:23,736 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:22:23,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,764 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,764 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,764 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,769 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,769 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,769 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,769 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,770 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,770 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,770 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,770 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,778 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,778 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,778 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,778 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,784 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,784 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,784 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,784 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,785 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,785 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,785 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,792 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,792 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,792 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,796 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,796 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,796 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,797 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,797 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,797 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,797 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,798 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,798 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,798 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,798 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,803 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,803 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,803 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,803 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,803 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:22:23 BoogieIcfgContainer [2021-10-24 11:22:23,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:22:23,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:22:23,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:22:23,811 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:22:23,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:18:31" (3/4) ... [2021-10-24 11:22:23,815 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 11:22:23,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-24 11:22:23,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-24 11:22:23,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-24 11:22:23,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 11:22:23,852 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((forall v_ULTIMATE.start_main_~j~0_103 : int, v_ULTIMATE.start_main_~k~0_62 : int :: (((unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0 || 0 <= unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || v_ULTIMATE.start_main_~k~0_62 < 2) || v_ULTIMATE.start_main_~j~0_103 < j + i) || i <= v_ULTIMATE.start_main_~k~0_62) && 4 <= i) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) || ((((a == 0 && 0 <= i) && j == 0) && i <= 0) && i + 100000 <= N)) || ((((((a == 0 && unknown-#memory_int-unknown[a][a + -8 + i * 4] + i <= 2 + unknown-#memory_int-unknown[a][a + -4 + i * 4]) && (\exists v_ULTIMATE.start_main_~i~0_117 : int :: ((v_ULTIMATE.start_main_~i~0_117 + unknown-#memory_int-unknown[a][a + -4 + v_ULTIMATE.start_main_~i~0_117 * 4] <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_117 * 4] + 1 && i <= v_ULTIMATE.start_main_~i~0_117 + 1) && v_ULTIMATE.start_main_~i~0_117 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_117 * 4 + -8] <= 2 + unknown-#memory_int-unknown[a][a + -4 + v_ULTIMATE.start_main_~i~0_117 * 4]) && v_ULTIMATE.start_main_~i~0_117 <= 4)) && 100000 <= N) && i <= 3) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1)) || (((((a == 0 && unknown-#memory_int-unknown[a][a + -8 + i * 4] + i <= 2 + unknown-#memory_int-unknown[a][a + -4 + i * 4]) && 100000 <= N) && i <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1)) || ((((a == 0 && 100000 <= N) && i == 1) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1) && 0 <= j) [2021-10-24 11:22:23,852 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8] && i <= 4) && a == 0) && 3 <= unknown-#memory_int-unknown[a][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1) || ((i <= 2 && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1)) || ((i <= 1 && 100000 <= N) && k == 1)) || ((((((((((0 <= unknown-#memory_int-unknown[a][a + 8 + k * 4] || i <= k + 2) && 4 <= i) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && (forall v_ULTIMATE.start_main_~k~0_62 : int :: ((v_ULTIMATE.start_main_~k~0_62 < k + 1 || 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0) || i <= 2 + v_ULTIMATE.start_main_~k~0_62)) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (0 <= unknown-#memory_int-unknown[a][a + k * 4 + 4] || i <= k + 1)) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond)) && (0 <= unknown-#memory_int-unknown[a][a + k * 4] || i <= k))) || (((2 <= k && (\exists v_ULTIMATE.start_main_~i~0_55 : int :: (i <= v_ULTIMATE.start_main_~i~0_55 + 1 && 1 <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_55 * 4]) && v_ULTIMATE.start_main_~i~0_55 <= 2)) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond))) || (((2 <= k && i <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond))) || (i <= 0 && k == 1)) || (((\exists v_ULTIMATE.start_main_~i~0_55 : int :: (i <= v_ULTIMATE.start_main_~i~0_55 + 1 && 1 <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_55 * 4]) && v_ULTIMATE.start_main_~i~0_55 <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1)) || ((((((forall v_ULTIMATE.start_main_~j~0_103 : int, v_ULTIMATE.start_main_~k~0_62 : int :: (((unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0 || 0 <= unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || v_ULTIMATE.start_main_~k~0_62 < 2) || v_ULTIMATE.start_main_~j~0_103 < j + i) || i <= v_ULTIMATE.start_main_~k~0_62) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1) [2021-10-24 11:22:23,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 11:22:23,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:22:23,863 INFO L168 Benchmark]: Toolchain (without parser) took 233585.58 ms. Allocated memory was 94.4 MB in the beginning and 197.1 MB in the end (delta: 102.8 MB). Free memory was 53.2 MB in the beginning and 164.1 MB in the end (delta: -110.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:22:23,864 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 69.3 MB in the end (delta: 53.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:22:23,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.81 ms. Allocated memory is still 94.4 MB. Free memory was 53.0 MB in the beginning and 70.0 MB in the end (delta: -17.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 11:22:23,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.33 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 68.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:22:23,864 INFO L168 Benchmark]: Boogie Preprocessor took 32.46 ms. Allocated memory is still 94.4 MB. Free memory was 68.6 MB in the beginning and 67.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:22:23,865 INFO L168 Benchmark]: RCFGBuilder took 424.91 ms. Allocated memory is still 94.4 MB. Free memory was 67.5 MB in the beginning and 55.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 11:22:23,865 INFO L168 Benchmark]: TraceAbstraction took 232780.01 ms. Allocated memory was 94.4 MB in the beginning and 197.1 MB in the end (delta: 102.8 MB). Free memory was 55.3 MB in the beginning and 167.2 MB in the end (delta: -111.9 MB). Peak memory consumption was 103.8 MB. Max. memory is 16.1 GB. [2021-10-24 11:22:23,865 INFO L168 Benchmark]: Witness Printer took 52.09 ms. Allocated memory is still 197.1 MB. Free memory was 167.2 MB in the beginning and 164.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:22:23,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 69.3 MB in the end (delta: 53.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.81 ms. Allocated memory is still 94.4 MB. Free memory was 53.0 MB in the beginning and 70.0 MB in the end (delta: -17.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.33 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 68.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.46 ms. Allocated memory is still 94.4 MB. Free memory was 68.6 MB in the beginning and 67.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 424.91 ms. Allocated memory is still 94.4 MB. Free memory was 67.5 MB in the beginning and 55.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 232780.01 ms. Allocated memory was 94.4 MB in the beginning and 197.1 MB in the end (delta: 102.8 MB). Free memory was 55.3 MB in the beginning and 167.2 MB in the end (delta: -111.9 MB). Peak memory consumption was 103.8 MB. Max. memory is 16.1 GB. * Witness Printer took 52.09 ms. Allocated memory is still 197.1 MB. Free memory was 167.2 MB in the beginning and 164.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: 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 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 232625.7ms, OverallIterations: 12, TraceHistogramMax: 6, EmptinessCheckTime: 24.3ms, AutomataDifference: 142469.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 46595.9ms, InitialAbstractionConstructionTime: 10.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 85 SDtfs, 283 SDslu, 484 SDs, 0 SdLazy, 1550 SolverSat, 190 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 21072.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 624 GetRequests, 300 SyntacticMatches, 17 SemanticMatches, 307 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2959 ImplicationChecksByTransitivity, 146721.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=11, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 91.0ms AutomataMinimizationTime, 12 MinimizatonAttempts, 84 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 32 NumberOfFragments, 909 HoareAnnotationTreeSize, 2 FomulaSimplifications, 13334 FormulaSimplificationTreeSizeReduction, 62.8ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 2622 FormulaSimplificationTreeSizeReductionInter, 46526.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 100.1ms SsaConstructionTime, 500.7ms SatisfiabilityAnalysisTime, 17434.1ms InterpolantComputationTime, 347 NumberOfCodeBlocks, 347 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 482 ConstructedInterpolants, 56 QuantifiedInterpolants, 6040 SizeOfPredicates, 82 NumberOfNonLiveVariables, 1106 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 32 InterpolantComputations, 2 PerfectInterpolantSequences, 24/570 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant [2021-10-24 11:22:23,891 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,892 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,892 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,892 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-24 11:22:23,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] Derived loop invariant: (((((((((forall v_ULTIMATE.start_main_~j~0_103 : int, v_ULTIMATE.start_main_~k~0_62 : int :: (((unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0 || 0 <= unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || v_ULTIMATE.start_main_~k~0_62 < 2) || v_ULTIMATE.start_main_~j~0_103 < j + i) || i <= v_ULTIMATE.start_main_~k~0_62) && 4 <= i) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) || ((((a == 0 && 0 <= i) && j == 0) && i <= 0) && i + 100000 <= N)) || ((((((a == 0 && unknown-#memory_int-unknown[a][a + -8 + i * 4] + i <= 2 + unknown-#memory_int-unknown[a][a + -4 + i * 4]) && (\exists v_ULTIMATE.start_main_~i~0_117 : int :: ((v_ULTIMATE.start_main_~i~0_117 + unknown-#memory_int-unknown[a][a + -4 + v_ULTIMATE.start_main_~i~0_117 * 4] <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_117 * 4] + 1 && i <= v_ULTIMATE.start_main_~i~0_117 + 1) && v_ULTIMATE.start_main_~i~0_117 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_117 * 4 + -8] <= 2 + unknown-#memory_int-unknown[a][a + -4 + v_ULTIMATE.start_main_~i~0_117 * 4]) && v_ULTIMATE.start_main_~i~0_117 <= 4)) && 100000 <= N) && i <= 3) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1)) || (((((a == 0 && unknown-#memory_int-unknown[a][a + -8 + i * 4] + i <= 2 + unknown-#memory_int-unknown[a][a + -4 + i * 4]) && 100000 <= N) && i <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1)) || ((((a == 0 && 100000 <= N) && i == 1) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1) && 0 <= j) - InvariantResult [Line: 24]: Loop Invariant [2021-10-24 11:22:23,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,918 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,918 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,918 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,918 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,918 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,919 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,919 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,921 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,922 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,922 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,922 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,922 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,925 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,925 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,925 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,925 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,925 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,926 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,926 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,926 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,926 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,926 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,927 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,927 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,927 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,927 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,927 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-24 11:22:23,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,929 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,929 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,929 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,929 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,929 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-24 11:22:23,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-24 11:22:23,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,930 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-24 11:22:23,931 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] Derived loop invariant: ((((((((((((unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8] && i <= 4) && a == 0) && 3 <= unknown-#memory_int-unknown[a][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1) || ((i <= 2 && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1)) || ((i <= 1 && 100000 <= N) && k == 1)) || ((((((((((0 <= unknown-#memory_int-unknown[a][a + 8 + k * 4] || i <= k + 2) && 4 <= i) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && (forall v_ULTIMATE.start_main_~k~0_62 : int :: ((v_ULTIMATE.start_main_~k~0_62 < k + 1 || 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0) || i <= 2 + v_ULTIMATE.start_main_~k~0_62)) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (0 <= unknown-#memory_int-unknown[a][a + k * 4 + 4] || i <= k + 1)) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond)) && (0 <= unknown-#memory_int-unknown[a][a + k * 4] || i <= k))) || (((2 <= k && (\exists v_ULTIMATE.start_main_~i~0_55 : int :: (i <= v_ULTIMATE.start_main_~i~0_55 + 1 && 1 <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_55 * 4]) && v_ULTIMATE.start_main_~i~0_55 <= 2)) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond))) || (((2 <= k && i <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond))) || (i <= 0 && k == 1)) || (((\exists v_ULTIMATE.start_main_~i~0_55 : int :: (i <= v_ULTIMATE.start_main_~i~0_55 + 1 && 1 <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_55 * 4]) && v_ULTIMATE.start_main_~i~0_55 <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1)) || ((((((forall v_ULTIMATE.start_main_~j~0_103 : int, v_ULTIMATE.start_main_~k~0_62 : int :: (((unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0 || 0 <= unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || v_ULTIMATE.start_main_~k~0_62 < 2) || v_ULTIMATE.start_main_~j~0_103 < j + i) || i <= v_ULTIMATE.start_main_~k~0_62) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1) RESULT: Ultimate proved your program to be correct! [2021-10-24 11:22:24,161 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-24 11:22:24,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f446c540-c797-41df-824a-7a3498201de0/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...