./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/standard_two_index_01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/standard_two_index_01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF --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 49688e6ac5964d079e81b93cbef6c2e6f5f14699441dc6a4423fa686d49b3f7f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:27:29,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:27:29,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:27:29,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:27:29,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:27:29,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:27:29,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:27:29,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:27:29,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:27:29,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:27:29,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:27:29,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:27:29,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:27:29,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:27:29,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:27:29,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:27:29,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:27:29,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:27:29,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:27:29,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:27:29,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:27:29,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:27:29,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:27:29,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:27:29,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:27:29,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:27:29,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:27:29,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:27:29,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:27:29,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:27:29,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:27:29,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:27:29,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:27:29,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:27:29,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:27:29,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:27:29,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:27:29,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:27:29,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:27:29,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:27:29,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:27:29,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:27:29,503 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:27:29,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:27:29,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:27:29,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:27:29,505 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:27:29,506 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:27:29,506 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:27:29,506 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:27:29,512 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:27:29,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:27:29,513 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:27:29,514 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:27:29,514 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:27:29,514 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:27:29,514 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:27:29,515 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:27:29,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:27:29,516 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:27:29,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:27:29,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:27:29,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:27:29,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:27:29,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:27:29,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:27:29,517 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:27:29,517 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:27:29,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:27:29,518 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:27:29,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:27:29,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:27:29,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:27:29,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:27:29,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:27:29,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:27:29,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:27:29,521 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:27:29,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:27:29,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:27:29,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:27:29,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:27:29,523 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_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49688e6ac5964d079e81b93cbef6c2e6f5f14699441dc6a4423fa686d49b3f7f [2021-11-13 01:27:29,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:27:29,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:27:29,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:27:29,829 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:27:29,830 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:27:29,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/array-examples/standard_two_index_01.i [2021-11-13 01:27:29,903 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/data/9dd8579d6/3bf70871fd0d4a40a0e05047ca2a80cc/FLAGe2443c342 [2021-11-13 01:27:30,338 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:27:30,339 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/sv-benchmarks/c/array-examples/standard_two_index_01.i [2021-11-13 01:27:30,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/data/9dd8579d6/3bf70871fd0d4a40a0e05047ca2a80cc/FLAGe2443c342 [2021-11-13 01:27:30,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/data/9dd8579d6/3bf70871fd0d4a40a0e05047ca2a80cc [2021-11-13 01:27:30,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:27:30,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:27:30,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:27:30,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:27:30,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:27:30,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:30" (1/1) ... [2021-11-13 01:27:30,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ed233c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:30, skipping insertion in model container [2021-11-13 01:27:30,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:30" (1/1) ... [2021-11-13 01:27:30,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:27:30,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:27:30,995 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_8ea7b192-98a8-4522-a623-2f65ed385a7d/sv-benchmarks/c/array-examples/standard_two_index_01.i[814,827] [2021-11-13 01:27:31,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:27:31,020 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:27:31,033 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_8ea7b192-98a8-4522-a623-2f65ed385a7d/sv-benchmarks/c/array-examples/standard_two_index_01.i[814,827] [2021-11-13 01:27:31,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:27:31,059 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:27:31,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31 WrapperNode [2021-11-13 01:27:31,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:27:31,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:27:31,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:27:31,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:27:31,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (1/1) ... [2021-11-13 01:27:31,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (1/1) ... [2021-11-13 01:27:31,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:27:31,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:27:31,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:27:31,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:27:31,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (1/1) ... [2021-11-13 01:27:31,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (1/1) ... [2021-11-13 01:27:31,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (1/1) ... [2021-11-13 01:27:31,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (1/1) ... [2021-11-13 01:27:31,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (1/1) ... [2021-11-13 01:27:31,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (1/1) ... [2021-11-13 01:27:31,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (1/1) ... [2021-11-13 01:27:31,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:27:31,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:27:31,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:27:31,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:27:31,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (1/1) ... [2021-11-13 01:27:31,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:27:31,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:27:31,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:27:31,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:27:31,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:27:31,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:27:31,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 01:27:31,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:27:31,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:27:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 01:27:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:27:31,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:27:31,472 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 01:27:31,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:31 BoogieIcfgContainer [2021-11-13 01:27:31,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:27:31,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:27:31,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:27:31,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:27:31,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:27:30" (1/3) ... [2021-11-13 01:27:31,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfa2c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:27:31, skipping insertion in model container [2021-11-13 01:27:31,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:31" (2/3) ... [2021-11-13 01:27:31,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfa2c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:27:31, skipping insertion in model container [2021-11-13 01:27:31,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:31" (3/3) ... [2021-11-13 01:27:31,486 INFO L111 eAbstractionObserver]: Analyzing ICFG standard_two_index_01.i [2021-11-13 01:27:31,491 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:27:31,492 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:27:31,573 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:27:31,581 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 [2021-11-13 01:27:31,597 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:27:31,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 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) [2021-11-13 01:27:31,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:27:31,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:31,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:27:31,616 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:31,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:31,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1745982706, now seen corresponding path program 1 times [2021-11-13 01:27:31,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:27:31,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36447505] [2021-11-13 01:27:31,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:31,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:27:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:31,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:27:31,789 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:27:31,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36447505] [2021-11-13 01:27:31,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36447505] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:27:31,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:27:31,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:27:31,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103049707] [2021-11-13 01:27:31,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:27:31,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:27:31,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:27:31,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:27:31,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:27:31,834 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 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) 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) [2021-11-13 01:27:31,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:27:31,903 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2021-11-13 01:27:31,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:27:31,905 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 [2021-11-13 01:27:31,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:27:31,914 INFO L225 Difference]: With dead ends: 23 [2021-11-13 01:27:31,915 INFO L226 Difference]: Without dead ends: 15 [2021-11-13 01:27:31,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:27:31,930 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.71ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.82ms IncrementalHoareTripleChecker+Time [2021-11-13 01:27:31,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 17 Unknown, 0 Unchecked, 1.71ms Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 48.82ms Time] [2021-11-13 01:27:31,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-13 01:27:31,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2021-11-13 01:27:31,974 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) [2021-11-13 01:27:31,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-11-13 01:27:31,976 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2021-11-13 01:27:31,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:27:31,977 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-13 01:27:31,977 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) [2021-11-13 01:27:31,978 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-11-13 01:27:31,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 01:27:31,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:31,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:27:31,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:27:31,980 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:31,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:31,984 INFO L85 PathProgramCache]: Analyzing trace with hash -51261225, now seen corresponding path program 1 times [2021-11-13 01:27:31,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:27:31,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709150875] [2021-11-13 01:27:31,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:31,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:27:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 01:27:32,081 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:27:32,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709150875] [2021-11-13 01:27:32,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709150875] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:27:32,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914823722] [2021-11-13 01:27:32,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:32,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:27:32,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:27:32,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:27:32,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 01:27:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:32,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:27:32,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:27:32,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 01:27:32,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:27:32,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 01:27:32,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914823722] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:27:32,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1200096467] [2021-11-13 01:27:32,336 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-13 01:27:32,336 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 01:27:32,343 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 01:27:32,349 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 01:27:32,349 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 01:27:32,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,413 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 01:27:32,422 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:32,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-13 01:27:32,478 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 36=[|v_#valid_29|]} [2021-11-13 01:27:32,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-13 01:27:32,513 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:32,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:32,516 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:32,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:32,553 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,605 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-13 01:27:32,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2021-11-13 01:27:32,607 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-13 01:27:32,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-13 01:27:32,614 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:32,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:32,638 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,642 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-13 01:27:32,646 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:32,647 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:155, output treesize:121 [2021-11-13 01:27:32,658 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-13 01:27:32,667 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,669 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-13 01:27:32,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:32,673 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,675 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-13 01:27:32,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:32,678 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-13 01:27:32,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-13 01:27:32,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:32,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-13 01:27:32,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-13 01:27:32,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-13 01:27:32,708 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:32,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:32,724 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-13 01:27:32,734 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:32,735 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:140, output treesize:137 [2021-11-13 01:27:32,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:32,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:32,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:32,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,856 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,879 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,900 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 01:27:32,909 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:32,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 299 [2021-11-13 01:27:32,922 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 280 [2021-11-13 01:27:32,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-11-13 01:27:32,947 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,951 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:32,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:32,966 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,982 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,986 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:32,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:32,989 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,992 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,993 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 01:27:32,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-13 01:27:32,995 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:32,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:32,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-13 01:27:33,004 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,006 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,007 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:33,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-13 01:27:33,009 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,016 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:33,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:33,025 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:27:33,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 315 [2021-11-13 01:27:33,040 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-13 01:27:33,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 353 [2021-11-13 01:27:33,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:33,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:33,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:33,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 50 [2021-11-13 01:27:33,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-13 01:27:33,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-13 01:27:33,162 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:33,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:33,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:33,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-13 01:27:33,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:33,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:33,195 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:33,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,250 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,276 INFO L180 QuantifierPusher]: treesize reduction 106, result has 75.3 percent of original size [2021-11-13 01:27:33,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 335 [2021-11-13 01:27:33,289 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-13 01:27:33,289 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:437, output treesize:335 [2021-11-13 01:27:33,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,378 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.2 percent of original size [2021-11-13 01:27:33,383 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,384 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:27:33,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-13 01:27:33,386 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:33,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:33,397 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 16 treesize of output 12 [2021-11-13 01:27:33,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 01:27:33,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 01:27:33,398 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:33,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,401 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:33,406 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:33,406 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:67, output treesize:69 [2021-11-13 01:27:33,413 INFO L180 QuantifierPusher]: treesize reduction 46, result has 48.9 percent of original size [2021-11-13 01:27:33,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-13 01:27:33,418 INFO L180 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size [2021-11-13 01:27:33,421 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 01:27:33,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-13 01:27:33,439 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-13 01:27:33,440 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 15 treesize of output 15 [2021-11-13 01:27:33,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:27:33,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:27:33,446 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:33,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,449 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-13 01:27:33,451 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:33,452 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2021-11-13 01:27:33,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,490 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,494 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-13 01:27:33,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:33,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-13 01:27:33,501 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-13 01:27:33,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-13 01:27:33,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:33,538 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-13 01:27:33,539 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 25 [2021-11-13 01:27:33,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:33,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:33,544 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:33,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:33,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:33,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:33,572 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-13 01:27:33,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2021-11-13 01:27:33,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:33,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:33,581 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:33,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,598 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,606 INFO L180 QuantifierPusher]: treesize reduction 98, result has 57.8 percent of original size [2021-11-13 01:27:33,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-13 01:27:33,609 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-13 01:27:33,610 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:240, output treesize:134 [2021-11-13 01:27:33,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,661 INFO L180 QuantifierPusher]: treesize reduction 36, result has 68.1 percent of original size [2021-11-13 01:27:33,665 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:33,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:33,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:33,689 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-13 01:27:33,689 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 25 [2021-11-13 01:27:33,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:33,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:33,695 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:33,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:33,697 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:33,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-13 01:27:33,702 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:33,702 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:64 [2021-11-13 01:27:33,709 INFO L180 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-11-13 01:27:33,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-13 01:27:33,717 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 01:27:34,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 01:27:34,112 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 01:27:34,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-13 01:27:34,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933246631] [2021-11-13 01:27:34,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 01:27:34,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:27:34,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:27:34,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:27:34,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:27:34,115 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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) [2021-11-13 01:27:34,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:27:34,167 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-11-13 01:27:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:27:34,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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) Word has length 8 [2021-11-13 01:27:34,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:27:34,168 INFO L225 Difference]: With dead ends: 39 [2021-11-13 01:27:34,168 INFO L226 Difference]: Without dead ends: 32 [2021-11-13 01:27:34,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:27:34,170 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.10ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.75ms IncrementalHoareTripleChecker+Time [2021-11-13 01:27:34,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 15 Invalid, 41 Unknown, 0 Unchecked, 1.10ms Time], IncrementalHoareTripleChecker [15 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 39.75ms Time] [2021-11-13 01:27:34,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-13 01:27:34,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 16. [2021-11-13 01:27:34,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 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) [2021-11-13 01:27:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-11-13 01:27:34,176 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2021-11-13 01:27:34,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:27:34,176 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-11-13 01:27:34,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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) [2021-11-13 01:27:34,176 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-11-13 01:27:34,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 01:27:34,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:34,177 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2021-11-13 01:27:34,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:27:34,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-13 01:27:34,378 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:34,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:34,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1828871886, now seen corresponding path program 2 times [2021-11-13 01:27:34,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:27:34,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445624835] [2021-11-13 01:27:34,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:34,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:27:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:34,475 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 01:27:34,476 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:27:34,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445624835] [2021-11-13 01:27:34,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445624835] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:27:34,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083135084] [2021-11-13 01:27:34,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 01:27:34,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:27:34,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:27:34,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:27:34,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 01:27:34,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-13 01:27:34,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 01:27:34,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:27:34,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:27:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 01:27:34,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:27:34,705 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 01:27:34,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083135084] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:27:34,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [153633720] [2021-11-13 01:27:34,708 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-13 01:27:34,708 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 01:27:34,709 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 01:27:34,709 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 01:27:34,709 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 01:27:34,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,718 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 01:27:34,720 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:34,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-13 01:27:34,732 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 36=[|v_#valid_30|]} [2021-11-13 01:27:34,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-13 01:27:34,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:34,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:34,750 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:34,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:34,758 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,799 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-13 01:27:34,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2021-11-13 01:27:34,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-13 01:27:34,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-13 01:27:34,805 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:34,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:34,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-13 01:27:34,815 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:34,815 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:155, output treesize:121 [2021-11-13 01:27:34,819 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-13 01:27:34,825 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,826 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-13 01:27:34,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:34,828 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-13 01:27:34,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:34,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-13 01:27:34,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-13 01:27:34,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:34,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-13 01:27:34,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-13 01:27:34,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-13 01:27:34,854 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:34,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:34,872 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,876 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-13 01:27:34,877 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:34,877 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:140, output treesize:137 [2021-11-13 01:27:34,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:34,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:34,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:34,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,956 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,965 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,969 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 01:27:34,973 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:34,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 299 [2021-11-13 01:27:34,979 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 280 [2021-11-13 01:27:34,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-11-13 01:27:34,992 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,994 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:34,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:34,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:34,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:35,000 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,009 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,011 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:35,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-13 01:27:35,017 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,020 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,022 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:35,022 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:35,023 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:27:35,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,037 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:35,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:35,040 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,041 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,042 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 01:27:35,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-13 01:27:35,043 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-13 01:27:35,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 315 [2021-11-13 01:27:35,051 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-13 01:27:35,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 353 [2021-11-13 01:27:35,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:35,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:35,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:35,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 50 [2021-11-13 01:27:35,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-13 01:27:35,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-13 01:27:35,096 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:35,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:35,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:35,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-13 01:27:35,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:35,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:35,115 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:35,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,149 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,162 INFO L180 QuantifierPusher]: treesize reduction 106, result has 75.3 percent of original size [2021-11-13 01:27:35,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 335 [2021-11-13 01:27:35,169 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-13 01:27:35,170 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:437, output treesize:335 [2021-11-13 01:27:35,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,231 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.2 percent of original size [2021-11-13 01:27:35,234 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,237 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:27:35,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-13 01:27:35,239 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:35,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:35,250 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 16 treesize of output 12 [2021-11-13 01:27:35,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 01:27:35,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 01:27:35,252 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:35,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,255 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:35,258 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:35,259 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:67, output treesize:69 [2021-11-13 01:27:35,265 INFO L180 QuantifierPusher]: treesize reduction 46, result has 48.9 percent of original size [2021-11-13 01:27:35,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-13 01:27:35,269 INFO L180 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size [2021-11-13 01:27:35,274 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:35,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-11-13 01:27:35,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:35,292 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-13 01:27:35,292 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 25 [2021-11-13 01:27:35,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:35,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:35,295 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:35,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,298 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-13 01:27:35,300 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:35,300 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-11-13 01:27:35,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,327 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-13 01:27:35,332 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:35,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-13 01:27:35,335 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,337 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-13 01:27:35,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-13 01:27:35,355 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:35,365 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-13 01:27:35,365 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 25 [2021-11-13 01:27:35,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:35,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:35,368 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:35,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:35,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:35,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:35,379 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:35,380 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:35,390 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-13 01:27:35,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-13 01:27:35,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-13 01:27:35,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-13 01:27:35,395 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:35,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,406 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,411 INFO L180 QuantifierPusher]: treesize reduction 98, result has 59.5 percent of original size [2021-11-13 01:27:35,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-13 01:27:35,413 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-13 01:27:35,413 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:250, output treesize:144 [2021-11-13 01:27:35,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,440 INFO L180 QuantifierPusher]: treesize reduction 36, result has 68.1 percent of original size [2021-11-13 01:27:35,442 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:35,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:35,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:35,463 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-13 01:27:35,463 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 25 [2021-11-13 01:27:35,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:35,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:35,466 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:35,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:35,468 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:35,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-13 01:27:35,471 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:35,471 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:64 [2021-11-13 01:27:35,475 INFO L180 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-11-13 01:27:35,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-13 01:27:35,482 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 01:27:35,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 01:27:35,833 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 01:27:35,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2021-11-13 01:27:35,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067359035] [2021-11-13 01:27:35,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 01:27:35,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 01:27:35,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:27:35,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 01:27:35,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=175, Unknown=0, NotChecked=0, Total=306 [2021-11-13 01:27:35,835 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 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) [2021-11-13 01:27:35,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:27:35,955 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2021-11-13 01:27:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 01:27:35,956 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 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) Word has length 14 [2021-11-13 01:27:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:27:35,957 INFO L225 Difference]: With dead ends: 84 [2021-11-13 01:27:35,957 INFO L226 Difference]: Without dead ends: 74 [2021-11-13 01:27:35,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=175, Unknown=0, NotChecked=0, Total=306 [2021-11-13 01:27:35,959 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 100 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.89ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.45ms IncrementalHoareTripleChecker+Time [2021-11-13 01:27:35,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 33 Invalid, 116 Unknown, 0 Unchecked, 2.89ms Time], IncrementalHoareTripleChecker [66 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 98.45ms Time] [2021-11-13 01:27:35,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-13 01:27:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 28. [2021-11-13 01:27:35,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 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) [2021-11-13 01:27:35,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-11-13 01:27:35,966 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 14 [2021-11-13 01:27:35,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:27:35,966 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-11-13 01:27:35,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 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) [2021-11-13 01:27:35,967 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-11-13 01:27:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 01:27:35,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:35,968 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1] [2021-11-13 01:27:36,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:27:36,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:27:36,168 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:36,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:36,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1432723566, now seen corresponding path program 3 times [2021-11-13 01:27:36,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:27:36,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737105808] [2021-11-13 01:27:36,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:36,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:27:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:36,342 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-13 01:27:36,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:27:36,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737105808] [2021-11-13 01:27:36,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737105808] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:27:36,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136377629] [2021-11-13 01:27:36,342 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 01:27:36,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:27:36,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:27:36,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:27:36,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 01:27:36,424 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 01:27:36,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 01:27:36,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 01:27:36,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:27:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-13 01:27:36,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:27:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-13 01:27:36,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136377629] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:27:36,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1397701133] [2021-11-13 01:27:36,753 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-13 01:27:36,753 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 01:27:36,753 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 01:27:36,753 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 01:27:36,754 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 01:27:36,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,763 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:36,764 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 01:27:36,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-13 01:27:36,772 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 36=[|v_#valid_31|]} [2021-11-13 01:27:36,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-13 01:27:36,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:36,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:36,789 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:36,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:36,798 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,832 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-13 01:27:36,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2021-11-13 01:27:36,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-13 01:27:36,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-13 01:27:36,837 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:36,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:36,842 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-13 01:27:36,846 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:36,846 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:155, output treesize:121 [2021-11-13 01:27:36,852 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-13 01:27:36,856 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,857 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,858 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:36,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-13 01:27:36,859 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,861 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:36,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:36,863 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:27:36,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-11-13 01:27:36,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:36,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-13 01:27:36,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:36,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:36,882 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:36,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:36,893 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-11-13 01:27:36,898 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:36,899 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:147, output treesize:149 [2021-11-13 01:27:36,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:36,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:36,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:36,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,962 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,965 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,969 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,973 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-13 01:27:36,975 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:36,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 309 [2021-11-13 01:27:36,981 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-13 01:27:36,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-13 01:27:36,991 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:36,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:36,992 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:37,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:37,006 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,012 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,014 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:37,022 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:37,022 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,024 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,024 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-13 01:27:37,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-13 01:27:37,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-13 01:27:37,031 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,032 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,032 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,033 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:37,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-13 01:27:37,034 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,035 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:37,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:37,038 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:27:37,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 325 [2021-11-13 01:27:37,043 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-11-13 01:27:37,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-11-13 01:27:37,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:37,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:37,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:37,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 55 [2021-11-13 01:27:37,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-13 01:27:37,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-13 01:27:37,084 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:37,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:37,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:37,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-13 01:27:37,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:37,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:37,101 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:37,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,132 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,143 INFO L180 QuantifierPusher]: treesize reduction 106, result has 75.9 percent of original size [2021-11-13 01:27:37,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-11-13 01:27:37,149 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-13 01:27:37,149 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:447, output treesize:345 [2021-11-13 01:27:37,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,212 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.2 percent of original size [2021-11-13 01:27:37,215 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,215 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,216 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:27:37,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-13 01:27:37,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:37,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:37,224 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 16 treesize of output 12 [2021-11-13 01:27:37,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 01:27:37,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 01:27:37,226 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:37,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,228 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:37,231 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:37,231 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:67, output treesize:69 [2021-11-13 01:27:37,235 INFO L180 QuantifierPusher]: treesize reduction 46, result has 48.9 percent of original size [2021-11-13 01:27:37,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-13 01:27:37,239 INFO L180 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size [2021-11-13 01:27:37,240 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-13 01:27:37,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-13 01:27:37,248 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:37,256 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-13 01:27:37,256 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 20 treesize of output 20 [2021-11-13 01:27:37,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:27:37,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:27:37,260 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:37,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,263 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-13 01:27:37,265 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:37,265 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:58 [2021-11-13 01:27:37,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,296 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,297 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:37,299 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-13 01:27:37,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-13 01:27:37,310 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-13 01:27:37,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-13 01:27:37,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:37,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:37,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:37,328 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:37,338 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-13 01:27:37,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 47 [2021-11-13 01:27:37,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-13 01:27:37,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-13 01:27:37,342 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:37,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:37,360 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-13 01:27:37,361 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 25 [2021-11-13 01:27:37,361 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:37,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:37,363 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:37,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,376 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,379 INFO L180 QuantifierPusher]: treesize reduction 98, result has 58.6 percent of original size [2021-11-13 01:27:37,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-13 01:27:37,381 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-13 01:27:37,382 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:245, output treesize:139 [2021-11-13 01:27:37,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,408 INFO L180 QuantifierPusher]: treesize reduction 36, result has 68.1 percent of original size [2021-11-13 01:27:37,410 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:37,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:37,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:37,427 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-13 01:27:37,428 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 25 [2021-11-13 01:27:37,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:37,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:37,430 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:37,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:37,432 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,433 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:37,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-13 01:27:37,434 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:37,434 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:64 [2021-11-13 01:27:37,438 INFO L180 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-11-13 01:27:37,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-13 01:27:37,445 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 01:27:37,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 01:27:37,759 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 01:27:37,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2021-11-13 01:27:37,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155474904] [2021-11-13 01:27:37,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 01:27:37,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-13 01:27:37,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:27:37,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-13 01:27:37,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=389, Invalid=481, Unknown=0, NotChecked=0, Total=870 [2021-11-13 01:27:37,761 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 25 states, 25 states have (on average 1.24) internal successors, (31), 24 states have internal predecessors, (31), 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) [2021-11-13 01:27:38,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:27:38,024 INFO L93 Difference]: Finished difference Result 174 states and 201 transitions. [2021-11-13 01:27:38,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-13 01:27:38,024 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.24) internal successors, (31), 24 states have internal predecessors, (31), 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 [2021-11-13 01:27:38,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:27:38,026 INFO L225 Difference]: With dead ends: 174 [2021-11-13 01:27:38,026 INFO L226 Difference]: Without dead ends: 158 [2021-11-13 01:27:38,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=389, Invalid=481, Unknown=0, NotChecked=0, Total=870 [2021-11-13 01:27:38,028 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 228 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.53ms SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 195.83ms IncrementalHoareTripleChecker+Time [2021-11-13 01:27:38,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 66 Invalid, 236 Unknown, 0 Unchecked, 3.53ms Time], IncrementalHoareTripleChecker [142 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 195.83ms Time] [2021-11-13 01:27:38,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-13 01:27:38,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 52. [2021-11-13 01:27:38,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 51 states have internal predecessors, (54), 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) [2021-11-13 01:27:38,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2021-11-13 01:27:38,038 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 26 [2021-11-13 01:27:38,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:27:38,039 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2021-11-13 01:27:38,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.24) internal successors, (31), 24 states have internal predecessors, (31), 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) [2021-11-13 01:27:38,039 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2021-11-13 01:27:38,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-13 01:27:38,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:38,041 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1] [2021-11-13 01:27:38,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:27:38,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-11-13 01:27:38,269 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:38,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:38,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1579226194, now seen corresponding path program 4 times [2021-11-13 01:27:38,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:27:38,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43327123] [2021-11-13 01:27:38,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:38,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:27:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:38,662 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-13 01:27:38,662 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:27:38,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43327123] [2021-11-13 01:27:38,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43327123] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:27:38,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385669820] [2021-11-13 01:27:38,662 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-13 01:27:38,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:27:38,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:27:38,665 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:27:38,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 01:27:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:38,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-13 01:27:38,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:27:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-13 01:27:38,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:27:39,718 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-13 01:27:39,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385669820] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:27:39,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1423411162] [2021-11-13 01:27:39,721 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-13 01:27:39,721 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 01:27:39,721 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 01:27:39,722 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 01:27:39,722 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 01:27:39,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,737 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:39,738 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,738 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 01:27:39,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-13 01:27:39,742 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 36=[|v_#valid_32|]} [2021-11-13 01:27:39,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-13 01:27:39,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:39,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:39,760 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:39,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:39,766 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,797 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-13 01:27:39,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2021-11-13 01:27:39,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-13 01:27:39,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-13 01:27:39,802 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:39,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:39,807 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-13 01:27:39,811 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:39,811 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:155, output treesize:121 [2021-11-13 01:27:39,815 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-13 01:27:39,817 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,818 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-13 01:27:39,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:39,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,821 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-13 01:27:39,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:39,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-13 01:27:39,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-13 01:27:39,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:39,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-13 01:27:39,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-13 01:27:39,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-13 01:27:39,839 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:39,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:39,845 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-13 01:27:39,849 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:39,850 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:140, output treesize:137 [2021-11-13 01:27:39,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:39,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:39,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:39,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,910 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,912 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:39,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:39,913 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,920 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,924 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:39,926 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 01:27:39,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 299 [2021-11-13 01:27:39,931 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 280 [2021-11-13 01:27:39,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-11-13 01:27:39,943 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,949 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,950 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:39,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:39,952 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,953 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 01:27:39,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-13 01:27:39,955 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-13 01:27:39,958 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,959 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:39,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:27:39,961 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,962 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:39,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-13 01:27:39,970 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:27:39,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 315 [2021-11-13 01:27:39,975 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:39,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:39,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-13 01:27:39,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 353 [2021-11-13 01:27:39,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:40,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:40,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:40,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 50 [2021-11-13 01:27:40,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-13 01:27:40,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-13 01:27:40,013 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:40,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:40,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:40,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-13 01:27:40,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:40,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 01:27:40,037 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:40,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,075 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,088 INFO L180 QuantifierPusher]: treesize reduction 106, result has 75.3 percent of original size [2021-11-13 01:27:40,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 335 [2021-11-13 01:27:40,095 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-13 01:27:40,095 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:437, output treesize:335 [2021-11-13 01:27:40,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,166 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.2 percent of original size [2021-11-13 01:27:40,169 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:40,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:40,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:27:40,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-13 01:27:40,171 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:40,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:40,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:40,179 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 16 treesize of output 12 [2021-11-13 01:27:40,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 01:27:40,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 01:27:40,181 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:40,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,184 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:40,187 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:40,187 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:67, output treesize:69 [2021-11-13 01:27:40,191 INFO L180 QuantifierPusher]: treesize reduction 46, result has 48.9 percent of original size [2021-11-13 01:27:40,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-13 01:27:40,200 INFO L180 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size [2021-11-13 01:27:40,201 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:40,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 01:27:40,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-13 01:27:40,217 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-13 01:27:40,217 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 15 treesize of output 15 [2021-11-13 01:27:40,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:27:40,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:27:40,220 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:40,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,222 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-13 01:27:40,225 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:40,225 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2021-11-13 01:27:40,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,253 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:40,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,255 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:40,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-13 01:27:40,257 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:40,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:40,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-13 01:27:40,259 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:40,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-13 01:27:40,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-13 01:27:40,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:40,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:27:40,281 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:40,292 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-13 01:27:40,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2021-11-13 01:27:40,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:40,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-13 01:27:40,295 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:40,309 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:27:40,321 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-13 01:27:40,321 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 25 [2021-11-13 01:27:40,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:40,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:40,324 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:40,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,335 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,339 INFO L180 QuantifierPusher]: treesize reduction 98, result has 57.8 percent of original size [2021-11-13 01:27:40,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-13 01:27:40,341 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-13 01:27:40,341 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:240, output treesize:134 [2021-11-13 01:27:40,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,367 INFO L180 QuantifierPusher]: treesize reduction 36, result has 68.1 percent of original size [2021-11-13 01:27:40,373 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:27:40,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 01:27:40,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-13 01:27:40,391 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-13 01:27:40,392 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 25 [2021-11-13 01:27:40,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:40,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 01:27:40,394 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:27:40,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:27:40,397 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:27:40,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-13 01:27:40,399 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:27:40,399 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:64 [2021-11-13 01:27:40,403 INFO L180 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-11-13 01:27:40,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-13 01:27:40,409 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 01:27:40,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 01:27:40,735 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 01:27:40,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2021-11-13 01:27:40,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652372146] [2021-11-13 01:27:40,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 01:27:40,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-13 01:27:40,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:27:40,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-13 01:27:40,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1337, Invalid=1525, Unknown=0, NotChecked=0, Total=2862 [2021-11-13 01:27:40,739 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 49 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 48 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) [2021-11-13 01:27:41,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:27:41,373 INFO L93 Difference]: Finished difference Result 354 states and 405 transitions. [2021-11-13 01:27:41,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-13 01:27:41,374 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 48 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 50 [2021-11-13 01:27:41,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:27:41,377 INFO L225 Difference]: With dead ends: 354 [2021-11-13 01:27:41,377 INFO L226 Difference]: Without dead ends: 326 [2021-11-13 01:27:41,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1337, Invalid=1525, Unknown=0, NotChecked=0, Total=2862 [2021-11-13 01:27:41,380 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 748 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 313.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.62ms SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 388.48ms IncrementalHoareTripleChecker+Time [2021-11-13 01:27:41,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [748 Valid, 141 Invalid, 623 Unknown, 0 Unchecked, 6.62ms Time], IncrementalHoareTripleChecker [429 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 388.48ms Time] [2021-11-13 01:27:41,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-11-13 01:27:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 100. [2021-11-13 01:27:41,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.0303030303030303) internal successors, (102), 99 states have internal predecessors, (102), 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) [2021-11-13 01:27:41,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 102 transitions. [2021-11-13 01:27:41,401 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 102 transitions. Word has length 50 [2021-11-13 01:27:41,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:27:41,401 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 102 transitions. [2021-11-13 01:27:41,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 48 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) [2021-11-13 01:27:41,402 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 102 transitions. [2021-11-13 01:27:41,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-13 01:27:41,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:41,405 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 1, 1, 1, 1, 1, 1] [2021-11-13 01:27:41,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:27:41,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-11-13 01:27:41,621 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:41,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:41,622 INFO L85 PathProgramCache]: Analyzing trace with hash 788832814, now seen corresponding path program 5 times [2021-11-13 01:27:41,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:27:41,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864122940] [2021-11-13 01:27:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:41,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:27:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:42,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2021-11-13 01:27:42,749 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:27:42,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864122940] [2021-11-13 01:27:42,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864122940] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:27:42,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825038935] [2021-11-13 01:27:42,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 01:27:42,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:27:42,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:27:42,751 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:27:42,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea7b192-98a8-4522-a623-2f65ed385a7d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process