./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/standard_partition_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/standard_partition_ground-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8 --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 fcf72d109deb69f1acda4466c7376bd6c362d474983f8a50a2faed8c0a192a76 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:59,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:59,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:59,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:59,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:59,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:59,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:59,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:59,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:59,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:59,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:59,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:59,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:59,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:59,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:59,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:59,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:59,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:59,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:59,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:59,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:59,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:59,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:59,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:59,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:59,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:59,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:59,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:59,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:59,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:59,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:59,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:59,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:59,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:59,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:59,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:59,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:59,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:59,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:59,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:59,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:59,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 00:53:59,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:59,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:59,203 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:59,203 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:59,203 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:59,204 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:59,204 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:53:59,204 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:59,210 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:59,211 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:53:59,212 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:53:59,212 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:59,212 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:53:59,213 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:53:59,213 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:53:59,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:59,214 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:53:59,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:53:59,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:53:59,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:59,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:59,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:59,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:59,215 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:59,215 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:53:59,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:59,216 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:59,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:59,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:59,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:59,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:59,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:59,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:59,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:59,219 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:53:59,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:53:59,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:59,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:59,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:59,220 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_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcf72d109deb69f1acda4466c7376bd6c362d474983f8a50a2faed8c0a192a76 [2021-11-07 00:53:59,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:59,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:59,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:59,516 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:59,516 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:59,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/array-examples/standard_partition_ground-2.i [2021-11-07 00:53:59,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/data/ee65213f2/d3225e37e09c471293d4539f8e0a3da4/FLAG51c2dda47 [2021-11-07 00:54:00,138 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:54:00,140 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/sv-benchmarks/c/array-examples/standard_partition_ground-2.i [2021-11-07 00:54:00,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/data/ee65213f2/d3225e37e09c471293d4539f8e0a3da4/FLAG51c2dda47 [2021-11-07 00:54:00,593 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/data/ee65213f2/d3225e37e09c471293d4539f8e0a3da4 [2021-11-07 00:54:00,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:54:00,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:54:00,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:00,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:54:00,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:54:00,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597a722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00, skipping insertion in model container [2021-11-07 00:54:00,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:54:00,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:00,809 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_de79805a-7377-4372-9cc8-4a2ddd3f908b/sv-benchmarks/c/array-examples/standard_partition_ground-2.i[820,833] [2021-11-07 00:54:00,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:00,832 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:54:00,844 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_de79805a-7377-4372-9cc8-4a2ddd3f908b/sv-benchmarks/c/array-examples/standard_partition_ground-2.i[820,833] [2021-11-07 00:54:00,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:00,866 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:54:00,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00 WrapperNode [2021-11-07 00:54:00,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:00,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:54:00,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:54:00,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:54:00,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:54:00,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:54:00,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:54:00,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:54:00,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:54:00,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:54:00,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:54:00,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:54:00,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (1/1) ... [2021-11-07 00:54:00,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:00,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:00,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:54:00,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:54:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 00:54:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:54:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 00:54:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:54:01,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:54:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 00:54:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:54:01,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:54:01,440 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-07 00:54:01,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:01 BoogieIcfgContainer [2021-11-07 00:54:01,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:54:01,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:54:01,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:54:01,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:54:01,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:00" (1/3) ... [2021-11-07 00:54:01,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3e393e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:01, skipping insertion in model container [2021-11-07 00:54:01,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:00" (2/3) ... [2021-11-07 00:54:01,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3e393e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:01, skipping insertion in model container [2021-11-07 00:54:01,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:01" (3/3) ... [2021-11-07 00:54:01,451 INFO L111 eAbstractionObserver]: Analyzing ICFG standard_partition_ground-2.i [2021-11-07 00:54:01,456 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:54:01,457 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 00:54:01,502 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:54:01,508 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 [2021-11-07 00:54:01,509 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 00:54:01,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 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) [2021-11-07 00:54:01,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 00:54:01,528 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:01,528 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:01,529 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:01,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:01,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1646487347, now seen corresponding path program 1 times [2021-11-07 00:54:01,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:01,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706466255] [2021-11-07 00:54:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:01,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:01,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:01,697 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:01,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706466255] [2021-11-07 00:54:01,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706466255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 00:54:01,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:54:01,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 00:54:01,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089325387] [2021-11-07 00:54:01,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:54:01,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:54:01,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:54:01,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:54:01,722 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 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 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:01,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:01,759 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2021-11-07 00:54:01,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:54:01,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-07 00:54:01,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:01,769 INFO L225 Difference]: With dead ends: 19 [2021-11-07 00:54:01,769 INFO L226 Difference]: Without dead ends: 10 [2021-11-07 00:54:01,772 INFO L786 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 [2021-11-07 00:54:01,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-07 00:54:01,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-07 00:54:01,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:01,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-11-07 00:54:01,801 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 13 transitions. Word has length 7 [2021-11-07 00:54:01,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:01,802 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-07 00:54:01,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:01,802 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2021-11-07 00:54:01,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 00:54:01,803 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:01,803 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:01,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 00:54:01,804 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:01,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash -566801800, now seen corresponding path program 1 times [2021-11-07 00:54:01,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:01,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227912120] [2021-11-07 00:54:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:01,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:01,850 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:01,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227912120] [2021-11-07 00:54:01,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227912120] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:54:01,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924006816] [2021-11-07 00:54:01,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:01,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:01,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:01,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:54:01,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 00:54:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:01,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:54:01,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:01,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 00:54:01,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:02,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 00:54:02,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924006816] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:54:02,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-11-07 00:54:02,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [3] total 5 [2021-11-07 00:54:02,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910399213] [2021-11-07 00:54:02,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:54:02,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:54:02,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:54:02,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:54:02,032 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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) [2021-11-07 00:54:02,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:02,056 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2021-11-07 00:54:02,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:54:02,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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) Word has length 8 [2021-11-07 00:54:02,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:02,058 INFO L225 Difference]: With dead ends: 20 [2021-11-07 00:54:02,059 INFO L226 Difference]: Without dead ends: 14 [2021-11-07 00:54:02,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:54:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-07 00:54:02,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-07 00:54:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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) [2021-11-07 00:54:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-11-07 00:54:02,068 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 8 [2021-11-07 00:54:02,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:02,069 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-11-07 00:54:02,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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) [2021-11-07 00:54:02,070 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-11-07 00:54:02,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 00:54:02,076 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:02,076 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:02,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:02,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:02,289 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:02,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:02,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1396822008, now seen corresponding path program 1 times [2021-11-07 00:54:02,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:02,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368876200] [2021-11-07 00:54:02,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:02,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 00:54:02,340 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:02,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368876200] [2021-11-07 00:54:02,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368876200] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:54:02,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943038876] [2021-11-07 00:54:02,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:02,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:02,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:02,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:54:02,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 00:54:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:02,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 00:54:02,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:02,471 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 00:54:02,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 00:54:02,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943038876] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:54:02,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [11577633] [2021-11-07 00:54:02,557 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 00:54:02,557 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 00:54:02,564 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 00:54:02,570 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 00:54:02,570 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 00:54:02,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,624 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:02,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 00:54:02,627 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:02,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:02,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 00:54:02,655 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 36=[|v_#valid_29|]} [2021-11-07 00:54:02,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,686 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 [2021-11-07 00:54:02,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:02,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:02,692 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:02,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:02,766 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,845 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 00:54:02,853 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 [2021-11-07 00:54:02,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:02,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:02,869 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:02,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:02,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 00:54:02,917 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:02,918 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 00:54:02,930 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 00:54:02,949 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:02,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,954 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:02,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:02,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:02,961 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:02,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,966 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:02,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:02,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:02,969 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:02,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:02,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:02,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 00:54:02,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:02,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:03,000 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 [2021-11-07 00:54:03,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:03,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:03,005 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:03,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 00:54:03,030 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:03,030 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:153, output treesize:155 [2021-11-07 00:54:03,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,193 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,211 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,223 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 00:54:03,231 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:03,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-11-07 00:54:03,240 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 302 [2021-11-07 00:54:03,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-07 00:54:03,262 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,265 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,266 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:03,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:03,275 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,299 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,303 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:03,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:03,306 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:03,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:03,310 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:03,323 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,326 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:03,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:03,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,330 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 00:54:03,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 00:54:03,336 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,337 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 00:54:03,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-11-07 00:54:03,346 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-07 00:54:03,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 387 [2021-11-07 00:54:03,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:03,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:03,440 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 [2021-11-07 00:54:03,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:03,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:03,448 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:03,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:03,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:03,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:03,476 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 [2021-11-07 00:54:03,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 00:54:03,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 00:54:03,485 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:03,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,553 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,606 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.7 percent of original size [2021-11-07 00:54:03,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-11-07 00:54:03,626 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:03,627 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:483, output treesize:357 [2021-11-07 00:54:03,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,744 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 00:54:03,751 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,752 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:03,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:03,756 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:03,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:03,770 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 [2021-11-07 00:54:03,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:03,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:03,772 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:03,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,775 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,776 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:03,779 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:03,780 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 00:54:03,793 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 00:54:03,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:03,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-07 00:54:03,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 00:54:03,828 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 00:54:03,829 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 33 treesize of output 23 [2021-11-07 00:54:03,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:03,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:03,832 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:03,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,839 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-07 00:54:03,849 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:03,849 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:142, output treesize:133 [2021-11-07 00:54:03,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,890 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 00:54:03,896 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,900 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 00:54:03,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 00:54:03,906 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 00:54:03,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 00:54:03,936 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 00:54:03,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 00:54:03,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:03,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:03,941 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:03,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 00:54:03,956 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:03,956 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 00:54:03,964 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 00:54:03,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 00:54:03,971 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 00:54:03,978 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:03,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-07 00:54:03,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-07 00:54:03,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2021-11-07 00:54:03,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:54:03,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:03,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:54:03,992 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:03,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:03,998 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:04,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:04,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-07 00:54:04,002 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:04,003 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:117 [2021-11-07 00:54:04,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:04,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:04,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:04,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:04,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:04,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:04,030 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 00:54:04,037 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:04,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:04,039 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:04,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:04,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:04,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 00:54:04,046 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:04,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:04,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:04,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 00:54:04,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 00:54:04,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:04,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:04,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:04,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:04,072 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:04,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:04,081 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:04,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:04,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 00:54:04,085 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:04,085 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 00:54:04,103 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 00:54:04,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 00:54:04,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 00:54:04,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-07 00:54:04,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343751023] [2021-11-07 00:54:04,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 00:54:04,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:54:04,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 00:54:04,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-07 00:54:04,852 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-07 00:54:04,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:04,876 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2021-11-07 00:54:04,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 00:54:04,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 12 [2021-11-07 00:54:04,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:04,877 INFO L225 Difference]: With dead ends: 28 [2021-11-07 00:54:04,877 INFO L226 Difference]: Without dead ends: 17 [2021-11-07 00:54:04,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-07 00:54:04,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-07 00:54:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-07 00:54:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-11-07 00:54:04,881 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 12 [2021-11-07 00:54:04,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:04,882 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-11-07 00:54:04,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-07 00:54:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-11-07 00:54:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 00:54:04,882 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:04,883 INFO L513 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:04,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:05,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:05,096 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:05,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:05,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1674895731, now seen corresponding path program 2 times [2021-11-07 00:54:05,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:05,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095241708] [2021-11-07 00:54:05,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:05,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 00:54:05,169 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:05,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095241708] [2021-11-07 00:54:05,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095241708] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:54:05,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665003209] [2021-11-07 00:54:05,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 00:54:05,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:05,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:05,173 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:54:05,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 00:54:05,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-07 00:54:05,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 00:54:05,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:54:05,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:05,340 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 00:54:05,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:05,402 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 00:54:05,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665003209] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:54:05,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2114659048] [2021-11-07 00:54:05,406 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 00:54:05,406 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 00:54:05,406 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 00:54:05,406 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 00:54:05,406 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 00:54:05,416 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,417 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,417 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:05,418 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 00:54:05,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 00:54:05,427 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 36=[|v_#valid_30|]} [2021-11-07 00:54:05,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,453 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 [2021-11-07 00:54:05,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:05,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:05,455 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:05,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,461 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,498 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 00:54:05,498 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 [2021-11-07 00:54:05,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:05,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:05,503 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:05,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,509 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 00:54:05,513 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:05,514 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 00:54:05,517 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 00:54:05,521 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,523 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:05,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:05,525 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,526 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:05,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:05,528 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:05,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 00:54:05,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,544 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 [2021-11-07 00:54:05,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:05,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:05,548 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:05,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,555 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,557 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 00:54:05,561 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:05,561 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:153, output treesize:155 [2021-11-07 00:54:05,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,638 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,642 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,646 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,651 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 00:54:05,653 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,654 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:05,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-11-07 00:54:05,659 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 302 [2021-11-07 00:54:05,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-07 00:54:05,669 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,671 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:05,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:05,677 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,682 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,684 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:05,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:05,686 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,687 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 00:54:05,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 00:54:05,690 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 00:54:05,693 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,694 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:05,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:05,696 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,697 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:05,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:05,699 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:05,705 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-11-07 00:54:05,705 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-07 00:54:05,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 387 [2021-11-07 00:54:05,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,744 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 [2021-11-07 00:54:05,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 00:54:05,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 00:54:05,758 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:05,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:05,774 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 [2021-11-07 00:54:05,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:05,776 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:05,777 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:05,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,820 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,834 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.7 percent of original size [2021-11-07 00:54:05,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-11-07 00:54:05,840 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:05,841 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:483, output treesize:357 [2021-11-07 00:54:05,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,907 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 00:54:05,909 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,910 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:05,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:05,912 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:05,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:05,920 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 [2021-11-07 00:54:05,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:05,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:05,922 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:05,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,925 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:05,928 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:05,928 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 00:54:05,935 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 00:54:05,937 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:05,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:05,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-07 00:54:05,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 00:54:05,957 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 00:54:05,958 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 33 treesize of output 23 [2021-11-07 00:54:05,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:05,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:05,960 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:05,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,966 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:05,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-07 00:54:05,969 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:05,970 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:142, output treesize:133 [2021-11-07 00:54:05,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:05,998 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 00:54:06,001 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:06,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,004 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:06,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 00:54:06,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 00:54:06,008 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:06,009 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 00:54:06,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 00:54:06,031 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 00:54:06,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 00:54:06,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:06,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:06,035 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:06,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:06,040 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,042 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 00:54:06,044 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:06,044 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 00:54:06,050 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 00:54:06,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 00:54:06,054 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 00:54:06,056 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:06,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:06,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-07 00:54:06,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2021-11-07 00:54:06,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-07 00:54:06,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-07 00:54:06,068 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:06,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:06,073 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-07 00:54:06,086 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:06,087 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:137, output treesize:136 [2021-11-07 00:54:06,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:06,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:06,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:06,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:06,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:06,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:06,108 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 00:54:06,111 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:06,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,113 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:06,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:06,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 00:54:06,117 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:06,118 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:06,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 00:54:06,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 00:54:06,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:06,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:06,129 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:06,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:06,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:06,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 00:54:06,138 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:06,138 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 00:54:06,145 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 00:54:06,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 00:54:06,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 00:54:06,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 12 [2021-11-07 00:54:06,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797441189] [2021-11-07 00:54:06,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 00:54:06,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:54:06,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 00:54:06,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-11-07 00:54:06,798 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 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) [2021-11-07 00:54:06,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:06,898 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2021-11-07 00:54:06,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 00:54:06,899 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 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 15 [2021-11-07 00:54:06,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:06,900 INFO L225 Difference]: With dead ends: 37 [2021-11-07 00:54:06,900 INFO L226 Difference]: Without dead ends: 26 [2021-11-07 00:54:06,901 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2021-11-07 00:54:06,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-07 00:54:06,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-07 00:54:06,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 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) [2021-11-07 00:54:06,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2021-11-07 00:54:06,905 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 15 [2021-11-07 00:54:06,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:06,906 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2021-11-07 00:54:06,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 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) [2021-11-07 00:54:06,906 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2021-11-07 00:54:06,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 00:54:06,907 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:06,907 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:06,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:07,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-07 00:54:07,129 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:07,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:07,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1927508024, now seen corresponding path program 3 times [2021-11-07 00:54:07,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:07,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90262213] [2021-11-07 00:54:07,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:07,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 00:54:07,220 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:07,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90262213] [2021-11-07 00:54:07,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90262213] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:54:07,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850842103] [2021-11-07 00:54:07,220 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 00:54:07,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:07,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:07,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:54:07,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 00:54:07,324 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 00:54:07,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 00:54:07,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:54:07,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 00:54:07,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 00:54:07,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850842103] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:54:07,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1881437144] [2021-11-07 00:54:07,517 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 00:54:07,517 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 00:54:07,518 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 00:54:07,518 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 00:54:07,518 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 00:54:07,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,525 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 00:54:07,527 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:07,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 00:54:07,532 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 36=[|v_#valid_31|]} [2021-11-07 00:54:07,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,547 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 [2021-11-07 00:54:07,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,548 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:07,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:07,550 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:07,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,562 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,601 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 00:54:07,602 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 [2021-11-07 00:54:07,603 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:07,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:07,607 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:07,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,615 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 00:54:07,620 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:07,620 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 00:54:07,625 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 00:54:07,628 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,630 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 00:54:07,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:07,632 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,634 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 00:54:07,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:07,636 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 00:54:07,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-11-07 00:54:07,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,653 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 [2021-11-07 00:54:07,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,655 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:07,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:07,656 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:07,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,664 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-11-07 00:54:07,670 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:07,671 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:146, output treesize:143 [2021-11-07 00:54:07,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,740 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,742 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:07,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:07,744 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,751 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,756 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:07,759 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 00:54:07,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 311 [2021-11-07 00:54:07,765 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-07 00:54:07,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 293 [2021-11-07 00:54:07,779 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,785 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,787 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:07,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:07,789 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,791 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:07,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:07,793 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:07,796 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,800 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:07,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:07,802 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 00:54:07,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-07 00:54:07,805 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 00:54:07,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-07 00:54:07,811 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:07,814 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 300 [2021-11-07 00:54:07,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-07 00:54:07,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,849 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 [2021-11-07 00:54:07,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 00:54:07,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 00:54:07,853 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:07,870 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 [2021-11-07 00:54:07,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:07,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:07,873 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:07,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:07,945 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.1 percent of original size [2021-11-07 00:54:07,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-11-07 00:54:07,951 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:07,952 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:473, output treesize:347 [2021-11-07 00:54:07,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:07,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,016 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 00:54:08,018 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,020 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,020 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:08,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:08,021 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,022 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:08,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:08,030 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 [2021-11-07 00:54:08,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,031 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:08,032 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:08,032 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:08,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,035 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:08,038 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:08,039 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 00:54:08,046 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 00:54:08,049 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:08,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-07 00:54:08,061 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 00:54:08,070 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 00:54:08,070 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 33 treesize of output 23 [2021-11-07 00:54:08,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:08,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:08,073 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:08,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,077 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-07 00:54:08,081 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:08,081 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:142, output treesize:133 [2021-11-07 00:54:08,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,107 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 00:54:08,112 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,114 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 00:54:08,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 00:54:08,124 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,125 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 00:54:08,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 00:54:08,146 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 00:54:08,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 00:54:08,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:08,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:08,149 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:08,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,154 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 00:54:08,157 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:08,158 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 00:54:08,162 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 00:54:08,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 00:54:08,168 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 00:54:08,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:08,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-07 00:54:08,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2021-11-07 00:54:08,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-07 00:54:08,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-07 00:54:08,182 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:08,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,186 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-07 00:54:08,190 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:08,190 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:137, output treesize:136 [2021-11-07 00:54:08,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,211 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 00:54:08,214 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,215 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,215 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:08,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 00:54:08,220 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:08,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:08,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 00:54:08,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 00:54:08,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:08,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:08,234 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:08,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:08,239 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:08,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 00:54:08,243 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:08,243 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 00:54:08,251 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 00:54:08,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 00:54:08,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 00:54:08,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2021-11-07 00:54:08,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697613839] [2021-11-07 00:54:08,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 00:54:08,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:54:08,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 00:54:08,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-07 00:54:08,883 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:08,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:08,909 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2021-11-07 00:54:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 00:54:08,910 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 00:54:08,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:08,911 INFO L225 Difference]: With dead ends: 52 [2021-11-07 00:54:08,911 INFO L226 Difference]: Without dead ends: 33 [2021-11-07 00:54:08,912 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-07 00:54:08,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-07 00:54:08,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-07 00:54:08,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:08,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2021-11-07 00:54:08,917 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 24 [2021-11-07 00:54:08,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:08,917 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2021-11-07 00:54:08,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:08,918 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2021-11-07 00:54:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 00:54:08,919 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:08,919 INFO L513 BasicCegarLoop]: trace histogram [12, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:08,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-07 00:54:09,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-11-07 00:54:09,133 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:09,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:09,133 INFO L85 PathProgramCache]: Analyzing trace with hash 725236237, now seen corresponding path program 4 times [2021-11-07 00:54:09,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:09,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075193059] [2021-11-07 00:54:09,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:09,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 00:54:09,340 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:09,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075193059] [2021-11-07 00:54:09,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075193059] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:54:09,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302259307] [2021-11-07 00:54:09,341 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 00:54:09,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:09,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:09,342 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:54:09,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 00:54:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:09,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 00:54:09,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:09,523 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 00:54:09,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 00:54:09,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302259307] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:54:09,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [902626749] [2021-11-07 00:54:09,837 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 00:54:09,837 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 00:54:09,837 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 00:54:09,837 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 00:54:09,837 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 00:54:09,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,843 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:09,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:09,845 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:09,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 00:54:09,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 00:54:09,851 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 36=[|v_#valid_32|]} [2021-11-07 00:54:09,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,867 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 [2021-11-07 00:54:09,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:09,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:09,869 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:09,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:09,874 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,911 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 00:54:09,912 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 [2021-11-07 00:54:09,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:09,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:09,917 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:09,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:09,922 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 00:54:09,925 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:09,926 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 00:54:09,930 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 00:54:09,933 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:09,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,934 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:09,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:09,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:09,936 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:09,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,937 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:09,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:09,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:09,939 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:09,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:09,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 00:54:09,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:09,958 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 [2021-11-07 00:54:09,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:09,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:09,964 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:09,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:09,969 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:09,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 00:54:09,976 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:09,976 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:153, output treesize:155 [2021-11-07 00:54:09,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:09,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,044 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,050 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,052 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:10,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:10,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,064 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,069 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:10,071 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 00:54:10,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-11-07 00:54:10,076 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 302 [2021-11-07 00:54:10,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-07 00:54:10,093 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,099 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,101 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:10,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:10,103 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,104 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:10,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:10,106 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:10,108 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,110 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:10,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:10,112 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,113 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 00:54:10,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 00:54:10,115 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 00:54:10,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-11-07 00:54:10,120 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-07 00:54:10,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 387 [2021-11-07 00:54:10,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:10,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:10,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:10,161 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 [2021-11-07 00:54:10,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 00:54:10,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 00:54:10,165 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:10,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:10,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:10,180 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 [2021-11-07 00:54:10,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:10,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:10,183 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:10,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,214 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,230 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.7 percent of original size [2021-11-07 00:54:10,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-11-07 00:54:10,239 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:10,239 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:483, output treesize:357 [2021-11-07 00:54:10,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,293 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 00:54:10,295 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,296 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:10,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:10,298 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:10,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:10,306 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 [2021-11-07 00:54:10,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:10,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:10,308 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:10,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,310 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:10,313 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:10,314 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 00:54:10,322 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 00:54:10,325 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:10,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-07 00:54:10,334 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 00:54:10,343 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 00:54:10,343 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 33 treesize of output 23 [2021-11-07 00:54:10,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:10,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:10,346 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:10,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-07 00:54:10,353 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:10,354 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:142, output treesize:138 [2021-11-07 00:54:10,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,382 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 00:54:10,386 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,388 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 00:54:10,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 00:54:10,392 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 00:54:10,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 00:54:10,412 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 00:54:10,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 00:54:10,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:10,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:10,415 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:10,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,422 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 00:54:10,425 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:10,426 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 00:54:10,430 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 00:54:10,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 00:54:10,435 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 00:54:10,437 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-07 00:54:10,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-07 00:54:10,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2021-11-07 00:54:10,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:54:10,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:54:10,447 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:10,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-07 00:54:10,471 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:10,472 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:117 [2021-11-07 00:54:10,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,497 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 00:54:10,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,508 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:10,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 00:54:10,512 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:10,513 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:10,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 00:54:10,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 00:54:10,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:10,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:10,524 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:10,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:10,529 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:10,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 00:54:10,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:10,534 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 00:54:10,542 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 00:54:11,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 00:54:11,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 00:54:11,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 28 [2021-11-07 00:54:11,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41032385] [2021-11-07 00:54:11,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 00:54:11,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:54:11,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 00:54:11,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=765, Unknown=0, NotChecked=0, Total=1190 [2021-11-07 00:54:11,174 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 29 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:11,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:11,222 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2021-11-07 00:54:11,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-07 00:54:11,222 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-07 00:54:11,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:11,223 INFO L225 Difference]: With dead ends: 66 [2021-11-07 00:54:11,223 INFO L226 Difference]: Without dead ends: 47 [2021-11-07 00:54:11,224 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=425, Invalid=765, Unknown=0, NotChecked=0, Total=1190 [2021-11-07 00:54:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-07 00:54:11,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-11-07 00:54:11,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.0869565217391304) internal successors, (50), 46 states have internal predecessors, (50), 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) [2021-11-07 00:54:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2021-11-07 00:54:11,231 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 31 [2021-11-07 00:54:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:11,231 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2021-11-07 00:54:11,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2021-11-07 00:54:11,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 00:54:11,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:11,233 INFO L513 BasicCegarLoop]: trace histogram [26, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:11,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:11,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:11,445 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:11,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash 881596333, now seen corresponding path program 5 times [2021-11-07 00:54:11,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:11,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546541370] [2021-11-07 00:54:11,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:11,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:11,940 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 00:54:11,940 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:11,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546541370] [2021-11-07 00:54:11,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546541370] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:54:11,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236521381] [2021-11-07 00:54:11,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 00:54:11,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:11,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:11,942 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:54:11,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 00:54:12,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-07 00:54:12,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 00:54:12,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 00:54:12,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:12,339 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2021-11-07 00:54:12,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:12,617 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2021-11-07 00:54:12,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236521381] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:54:12,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [423213251] [2021-11-07 00:54:12,620 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 00:54:12,620 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 00:54:12,620 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 00:54:12,621 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 00:54:12,621 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 00:54:12,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,629 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 00:54:12,630 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:12,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 00:54:12,635 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 36=[|v_#valid_33|]} [2021-11-07 00:54:12,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,651 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 [2021-11-07 00:54:12,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:12,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:12,653 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:12,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:12,658 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,693 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 00:54:12,693 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 [2021-11-07 00:54:12,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:12,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:12,698 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:12,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:12,703 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,704 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,705 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 00:54:12,706 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:12,706 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 00:54:12,710 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 00:54:12,717 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,718 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:12,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:12,720 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,721 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:12,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:12,723 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:12,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 00:54:12,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,737 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 [2021-11-07 00:54:12,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:12,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:12,740 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:12,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:12,745 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 00:54:12,751 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:12,751 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:153, output treesize:155 [2021-11-07 00:54:12,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:12,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:12,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:12,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,814 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,828 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,828 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 00:54:12,830 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:12,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-11-07 00:54:12,835 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 302 [2021-11-07 00:54:12,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-07 00:54:12,846 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,847 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:12,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:12,854 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,860 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,861 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:12,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:12,863 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,864 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:12,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:12,866 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:12,869 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,870 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:12,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:12,872 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,873 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 00:54:12,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 00:54:12,875 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,876 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 00:54:12,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-11-07 00:54:12,880 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:12,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-07 00:54:12,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 387 [2021-11-07 00:54:12,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,913 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 [2021-11-07 00:54:12,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:12,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:12,916 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:12,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,933 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 [2021-11-07 00:54:12,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 00:54:12,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 00:54:12,936 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:12,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:12,969 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:12,981 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.7 percent of original size [2021-11-07 00:54:12,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-11-07 00:54:12,991 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:12,992 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:483, output treesize:357 [2021-11-07 00:54:12,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,045 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 00:54:13,048 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,048 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:13,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:13,050 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:13,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:13,058 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 [2021-11-07 00:54:13,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:13,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:13,060 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:13,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,062 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:13,065 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:13,065 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 00:54:13,071 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 00:54:13,074 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:13,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-07 00:54:13,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 00:54:13,095 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 00:54:13,095 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 33 treesize of output 23 [2021-11-07 00:54:13,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:13,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:13,098 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:13,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-07 00:54:13,124 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:13,124 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:142, output treesize:138 [2021-11-07 00:54:13,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,149 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 00:54:13,152 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,154 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 00:54:13,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 00:54:13,158 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 00:54:13,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 00:54:13,179 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 00:54:13,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 00:54:13,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:13,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:13,182 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:13,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,187 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 00:54:13,190 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:13,190 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 00:54:13,195 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 00:54:13,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 00:54:13,199 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 00:54:13,200 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-07 00:54:13,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-07 00:54:13,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2021-11-07 00:54:13,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:54:13,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:54:13,214 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:13,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,218 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-07 00:54:13,229 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:13,230 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:117 [2021-11-07 00:54:13,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,264 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 00:54:13,266 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,268 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:13,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 00:54:13,272 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:13,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:13,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 00:54:13,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 00:54:13,285 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:13,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:13,286 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:13,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:13,292 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:13,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 00:54:13,295 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:13,295 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 00:54:13,301 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 00:54:14,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 00:54:14,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 00:54:14,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 9, 9] total 43 [2021-11-07 00:54:14,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051665918] [2021-11-07 00:54:14,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-07 00:54:14,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:54:14,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-07 00:54:14,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=558, Invalid=1794, Unknown=0, NotChecked=0, Total=2352 [2021-11-07 00:54:14,017 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 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) [2021-11-07 00:54:14,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:14,710 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2021-11-07 00:54:14,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-07 00:54:14,711 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 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 45 [2021-11-07 00:54:14,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:14,711 INFO L225 Difference]: With dead ends: 83 [2021-11-07 00:54:14,712 INFO L226 Difference]: Without dead ends: 64 [2021-11-07 00:54:14,715 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1719, Invalid=3981, Unknown=0, NotChecked=0, Total=5700 [2021-11-07 00:54:14,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-07 00:54:14,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-07 00:54:14,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.0634920634920635) internal successors, (67), 63 states have internal predecessors, (67), 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) [2021-11-07 00:54:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2021-11-07 00:54:14,722 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 45 [2021-11-07 00:54:14,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:14,723 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2021-11-07 00:54:14,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 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) [2021-11-07 00:54:14,723 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2021-11-07 00:54:14,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 00:54:14,725 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:14,725 INFO L513 BasicCegarLoop]: trace histogram [27, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:14,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-07 00:54:14,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:14,947 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:14,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:14,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1767188248, now seen corresponding path program 6 times [2021-11-07 00:54:14,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:14,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726887443] [2021-11-07 00:54:14,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:14,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-07 00:54:15,372 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:15,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726887443] [2021-11-07 00:54:15,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726887443] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:54:15,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831654479] [2021-11-07 00:54:15,374 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 00:54:15,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:15,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:15,375 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:54:15,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 00:54:15,550 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 00:54:15,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 00:54:15,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-07 00:54:15,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:15,703 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-07 00:54:15,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-07 00:54:16,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831654479] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:54:16,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [444283952] [2021-11-07 00:54:16,816 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 00:54:16,816 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 00:54:16,817 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 00:54:16,817 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 00:54:16,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 00:54:16,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,822 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:16,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:16,824 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:16,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 00:54:16,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 00:54:16,828 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 36=[|v_#valid_34|]} [2021-11-07 00:54:16,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,844 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 [2021-11-07 00:54:16,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:16,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:16,846 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:16,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:16,863 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,900 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 00:54:16,900 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 [2021-11-07 00:54:16,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:16,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:16,904 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:16,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:16,913 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 00:54:16,917 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:16,917 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 00:54:16,923 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 00:54:16,932 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:16,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,933 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:16,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 00:54:16,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:16,935 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:16,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,937 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:16,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 00:54:16,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:16,940 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:16,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 00:54:16,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-11-07 00:54:16,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:16,959 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 [2021-11-07 00:54:16,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:16,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:16,962 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:16,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:16,968 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:16,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-11-07 00:54:16,974 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:16,974 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:146, output treesize:143 [2021-11-07 00:54:16,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:16,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,061 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,065 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,069 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:17,072 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 00:54:17,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 311 [2021-11-07 00:54:17,077 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-07 00:54:17,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 293 [2021-11-07 00:54:17,087 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,088 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:17,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:17,093 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,098 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,099 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:17,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:17,101 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 00:54:17,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-07 00:54:17,104 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 00:54:17,107 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,108 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:17,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:17,109 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,110 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:17,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:17,112 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:17,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-07 00:54:17,117 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,120 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 300 [2021-11-07 00:54:17,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-07 00:54:17,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:17,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:17,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:17,153 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 [2021-11-07 00:54:17,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 00:54:17,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 00:54:17,156 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:17,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:17,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:17,171 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 [2021-11-07 00:54:17,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:17,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:17,174 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:17,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,207 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,219 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.1 percent of original size [2021-11-07 00:54:17,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-11-07 00:54:17,224 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:17,225 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:473, output treesize:347 [2021-11-07 00:54:17,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,283 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 00:54:17,289 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,290 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:17,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:17,291 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:17,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:17,299 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 [2021-11-07 00:54:17,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:17,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:17,300 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:17,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,303 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:17,305 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:17,306 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 00:54:17,312 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 00:54:17,314 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:17,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-07 00:54:17,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 00:54:17,332 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 00:54:17,332 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 33 treesize of output 23 [2021-11-07 00:54:17,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:17,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:17,335 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:17,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,339 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-07 00:54:17,342 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:17,342 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:142, output treesize:133 [2021-11-07 00:54:17,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,369 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 00:54:17,372 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,374 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 00:54:17,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 00:54:17,377 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 00:54:17,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 00:54:17,400 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 00:54:17,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 00:54:17,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:17,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:17,403 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:17,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,410 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 00:54:17,411 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:17,411 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 00:54:17,416 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 00:54:17,417 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 00:54:17,419 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 00:54:17,420 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-07 00:54:17,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-07 00:54:17,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2021-11-07 00:54:17,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:54:17,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:54:17,432 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:17,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,436 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-07 00:54:17,439 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:17,439 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:117 [2021-11-07 00:54:17,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,459 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 00:54:17,461 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,462 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:17,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 00:54:17,466 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:17,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:17,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 00:54:17,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 00:54:17,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:17,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:17,477 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:17,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:17,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:17,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 00:54:17,485 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:17,486 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 00:54:17,494 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 00:54:18,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 00:54:18,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 00:54:18,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 58 [2021-11-07 00:54:18,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655384882] [2021-11-07 00:54:18,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-07 00:54:18,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:54:18,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-07 00:54:18,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1730, Invalid=2430, Unknown=0, NotChecked=0, Total=4160 [2021-11-07 00:54:18,195 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand has 59 states, 59 states have (on average 1.1355932203389831) internal successors, (67), 58 states have internal predecessors, (67), 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) [2021-11-07 00:54:18,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:18,309 INFO L93 Difference]: Finished difference Result 128 states and 162 transitions. [2021-11-07 00:54:18,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-07 00:54:18,309 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 1.1355932203389831) internal successors, (67), 58 states have internal predecessors, (67), 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 62 [2021-11-07 00:54:18,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:18,315 INFO L225 Difference]: With dead ends: 128 [2021-11-07 00:54:18,315 INFO L226 Difference]: Without dead ends: 93 [2021-11-07 00:54:18,318 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1730, Invalid=2430, Unknown=0, NotChecked=0, Total=4160 [2021-11-07 00:54:18,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-07 00:54:18,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-07 00:54:18,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.0434782608695652) internal successors, (96), 92 states have internal predecessors, (96), 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) [2021-11-07 00:54:18,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 96 transitions. [2021-11-07 00:54:18,345 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 96 transitions. Word has length 62 [2021-11-07 00:54:18,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:18,347 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 96 transitions. [2021-11-07 00:54:18,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 1.1355932203389831) internal successors, (67), 58 states have internal predecessors, (67), 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) [2021-11-07 00:54:18,348 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 96 transitions. [2021-11-07 00:54:18,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-07 00:54:18,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:18,355 INFO L513 BasicCegarLoop]: trace histogram [56, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:18,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:18,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:18,581 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:18,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:18,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1454576717, now seen corresponding path program 7 times [2021-11-07 00:54:18,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:18,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574709049] [2021-11-07 00:54:18,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:18,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-07 00:54:20,202 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:20,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574709049] [2021-11-07 00:54:20,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574709049] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:54:20,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502421599] [2021-11-07 00:54:20,203 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 00:54:20,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:20,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:20,205 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:54:20,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 00:54:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:20,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-07 00:54:20,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:20,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-07 00:54:20,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:24,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-07 00:54:24,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502421599] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:54:24,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1841801748] [2021-11-07 00:54:24,221 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 00:54:24,221 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 00:54:24,221 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 00:54:24,221 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 00:54:24,222 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 00:54:24,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,234 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:24,238 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 00:54:24,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 00:54:24,242 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 36=[|v_#valid_35|]} [2021-11-07 00:54:24,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,259 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 [2021-11-07 00:54:24,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:24,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:24,261 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,266 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,301 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 00:54:24,302 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 [2021-11-07 00:54:24,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:24,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:24,306 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,311 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 00:54:24,314 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,315 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 00:54:24,318 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 00:54:24,320 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,322 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:24,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:24,324 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,325 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:24,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:24,327 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:24,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 00:54:24,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,342 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 [2021-11-07 00:54:24,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:24,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:24,345 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 00:54:24,355 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,355 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:153, output treesize:155 [2021-11-07 00:54:24,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,410 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,418 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,424 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:24,426 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,427 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 00:54:24,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-11-07 00:54:24,435 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 302 [2021-11-07 00:54:24,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-07 00:54:24,445 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,446 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:24,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:24,456 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,467 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,468 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:24,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:24,470 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,472 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 00:54:24,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 00:54:24,474 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 00:54:24,490 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,492 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:24,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:24,495 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,496 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:24,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:24,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:24,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-11-07 00:54:24,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-07 00:54:24,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 387 [2021-11-07 00:54:24,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,553 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 [2021-11-07 00:54:24,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:24,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:24,563 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:24,586 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 [2021-11-07 00:54:24,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 00:54:24,592 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 00:54:24,593 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,624 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,637 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.7 percent of original size [2021-11-07 00:54:24,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-11-07 00:54:24,644 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:24,644 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:483, output treesize:357 [2021-11-07 00:54:24,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,702 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 00:54:24,704 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,705 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:24,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:24,707 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:24,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:24,716 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 [2021-11-07 00:54:24,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:24,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:24,719 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,721 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:24,724 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,724 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 00:54:24,730 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 00:54:24,732 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 00:54:24,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-07 00:54:24,749 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-07 00:54:24,749 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 23 treesize of output 18 [2021-11-07 00:54:24,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 00:54:24,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 00:54:24,752 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,756 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-07 00:54:24,759 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:24,760 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:123, output treesize:119 [2021-11-07 00:54:24,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,783 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 00:54:24,788 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,789 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 00:54:24,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 00:54:24,794 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 00:54:24,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 00:54:24,814 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 00:54:24,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 00:54:24,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:24,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:24,818 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,822 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 00:54:24,825 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:24,825 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 00:54:24,830 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 00:54:24,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 00:54:24,834 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 00:54:24,836 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-07 00:54:24,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-07 00:54:24,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2021-11-07 00:54:24,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:54:24,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:54:24,848 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,851 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,858 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-07 00:54:24,860 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:24,860 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:117 [2021-11-07 00:54:24,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,878 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 00:54:24,880 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,882 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:24,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 00:54:24,888 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:24,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:24,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 00:54:24,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 00:54:24,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:24,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:24,901 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:24,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:24,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:24,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 00:54:24,909 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:24,909 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 00:54:24,916 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 00:54:25,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 00:54:25,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 00:54:25,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58, 58] total 116 [2021-11-07 00:54:25,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851483191] [2021-11-07 00:54:25,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2021-11-07 00:54:25,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:54:25,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2021-11-07 00:54:25,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6805, Invalid=8201, Unknown=0, NotChecked=0, Total=15006 [2021-11-07 00:54:25,683 INFO L87 Difference]: Start difference. First operand 93 states and 96 transitions. Second operand has 117 states, 117 states have (on average 1.0683760683760684) internal successors, (125), 116 states have internal predecessors, (125), 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) [2021-11-07 00:54:25,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:25,956 INFO L93 Difference]: Finished difference Result 186 states and 249 transitions. [2021-11-07 00:54:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-11-07 00:54:25,957 INFO L78 Accepts]: Start accepts. Automaton has has 117 states, 117 states have (on average 1.0683760683760684) internal successors, (125), 116 states have internal predecessors, (125), 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 91 [2021-11-07 00:54:25,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:25,960 INFO L225 Difference]: With dead ends: 186 [2021-11-07 00:54:25,961 INFO L226 Difference]: Without dead ends: 151 [2021-11-07 00:54:25,966 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1252 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=6805, Invalid=8201, Unknown=0, NotChecked=0, Total=15006 [2021-11-07 00:54:25,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-07 00:54:25,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-11-07 00:54:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.0266666666666666) internal successors, (154), 150 states have internal predecessors, (154), 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) [2021-11-07 00:54:25,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 154 transitions. [2021-11-07 00:54:25,997 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 154 transitions. Word has length 91 [2021-11-07 00:54:25,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:25,998 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 154 transitions. [2021-11-07 00:54:25,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 117 states, 117 states have (on average 1.0683760683760684) internal successors, (125), 116 states have internal predecessors, (125), 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) [2021-11-07 00:54:25,999 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 154 transitions. [2021-11-07 00:54:26,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-07 00:54:26,006 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:26,006 INFO L513 BasicCegarLoop]: trace histogram [114, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:26,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:26,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:26,228 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:26,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:26,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1268326355, now seen corresponding path program 8 times [2021-11-07 00:54:26,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:26,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377493452] [2021-11-07 00:54:26,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:26,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 6765 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-07 00:54:31,083 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:31,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377493452] [2021-11-07 00:54:31,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377493452] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:54:31,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781685717] [2021-11-07 00:54:31,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 00:54:31,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:31,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:31,085 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:54:31,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 00:54:33,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-07 00:54:33,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 00:54:33,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 00:54:33,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:34,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6765 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 6660 trivial. 0 not checked. [2021-11-07 00:54:34,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6765 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 6660 trivial. 0 not checked. [2021-11-07 00:54:35,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781685717] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:54:35,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1284122298] [2021-11-07 00:54:35,299 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 00:54:35,299 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 00:54:35,300 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 00:54:35,300 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 00:54:35,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 00:54:35,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,317 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:35,319 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 00:54:35,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 00:54:35,322 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_20|], 36=[|v_#valid_36|]} [2021-11-07 00:54:35,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,334 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 [2021-11-07 00:54:35,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:35,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:35,335 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,339 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,372 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 00:54:35,373 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 [2021-11-07 00:54:35,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:35,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:54:35,377 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,383 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 00:54:35,388 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,388 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 00:54:35,392 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 00:54:35,397 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,398 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 00:54:35,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:35,400 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,401 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 00:54:35,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:54:35,403 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 00:54:35,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-11-07 00:54:35,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,419 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 [2021-11-07 00:54:35,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:35,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:54:35,422 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,429 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-11-07 00:54:35,434 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,434 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:146, output treesize:143 [2021-11-07 00:54:35,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,490 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,491 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:35,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:35,493 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 00:54:35,507 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:35,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 311 [2021-11-07 00:54:35,511 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-07 00:54:35,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 293 [2021-11-07 00:54:35,524 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,529 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,530 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:35,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:35,533 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,534 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 00:54:35,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-07 00:54:35,536 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 00:54:35,539 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,540 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:35,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:54:35,542 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,543 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:35,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:35,545 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:54:35,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-07 00:54:35,583 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 300 [2021-11-07 00:54:35,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-07 00:54:35,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,618 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 [2021-11-07 00:54:35,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 00:54:35,620 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 00:54:35,621 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:35,635 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 [2021-11-07 00:54:35,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:35,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:35,638 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,668 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,683 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.1 percent of original size [2021-11-07 00:54:35,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-11-07 00:54:35,689 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:35,689 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:473, output treesize:347 [2021-11-07 00:54:35,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,738 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 00:54:35,740 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,741 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:35,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:35,743 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:54:35,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:35,750 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 [2021-11-07 00:54:35,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:35,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:54:35,752 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,754 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:54:35,757 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,757 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 00:54:35,763 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 00:54:35,765 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:54:35,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-07 00:54:35,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 00:54:35,783 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 00:54:35,783 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 33 treesize of output 23 [2021-11-07 00:54:35,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:35,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:54:35,786 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,790 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-07 00:54:35,793 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:35,793 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:142, output treesize:138 [2021-11-07 00:54:35,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,826 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 00:54:35,828 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,830 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 00:54:35,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 00:54:35,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 00:54:35,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 00:54:35,856 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 00:54:35,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 00:54:35,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:35,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:54:35,859 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,864 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 00:54:35,867 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:35,867 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 00:54:35,875 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 00:54:35,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 00:54:35,881 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 00:54:35,883 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:35,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-07 00:54:35,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2021-11-07 00:54:35,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-07 00:54:35,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-07 00:54:35,894 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,897 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-07 00:54:35,901 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:35,901 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:137, output treesize:136 [2021-11-07 00:54:35,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,929 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 00:54:35,931 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,934 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:54:35,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 00:54:35,937 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:54:35,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:54:35,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 00:54:35,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 00:54:35,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:35,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:54:35,947 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:54:35,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:54:35,952 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:35,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 00:54:35,955 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:54:35,955 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 00:54:35,961 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 00:54:36,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 00:54:36,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 00:54:36,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 17, 17] total 147 [2021-11-07 00:54:36,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82396674] [2021-11-07 00:54:36,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 147 states [2021-11-07 00:54:36,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:54:36,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2021-11-07 00:54:36,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7330, Invalid=15926, Unknown=0, NotChecked=0, Total=23256 [2021-11-07 00:54:36,936 INFO L87 Difference]: Start difference. First operand 151 states and 154 transitions. Second operand has 147 states, 147 states have (on average 1.0816326530612246) internal successors, (159), 147 states have internal predecessors, (159), 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) [2021-11-07 00:54:42,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:42,880 INFO L93 Difference]: Finished difference Result 219 states and 257 transitions. [2021-11-07 00:54:42,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2021-11-07 00:54:42,881 INFO L78 Accepts]: Start accepts. Automaton has has 147 states, 147 states have (on average 1.0816326530612246) internal successors, (159), 147 states have internal predecessors, (159), 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 149 [2021-11-07 00:54:42,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:42,883 INFO L225 Difference]: With dead ends: 219 [2021-11-07 00:54:42,883 INFO L226 Difference]: Without dead ends: 184 [2021-11-07 00:54:42,890 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 676 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11168 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=24235, Invalid=47321, Unknown=0, NotChecked=0, Total=71556 [2021-11-07 00:54:42,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-07 00:54:42,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2021-11-07 00:54:42,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.0218579234972678) internal successors, (187), 183 states have internal predecessors, (187), 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) [2021-11-07 00:54:42,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 187 transitions. [2021-11-07 00:54:42,904 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 187 transitions. Word has length 149 [2021-11-07 00:54:42,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:42,905 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 187 transitions. [2021-11-07 00:54:42,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 147 states, 147 states have (on average 1.0816326530612246) internal successors, (159), 147 states have internal predecessors, (159), 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) [2021-11-07 00:54:42,905 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 187 transitions. [2021-11-07 00:54:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-07 00:54:42,908 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:42,908 INFO L513 BasicCegarLoop]: trace histogram [115, 30, 30, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:42,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:43,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:43,127 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:54:43,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:43,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1962998120, now seen corresponding path program 9 times [2021-11-07 00:54:43,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:54:43,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494734666] [2021-11-07 00:54:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:43,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:54:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:47,974 INFO L134 CoverageAnalysis]: Checked inductivity of 7600 backedges. 0 proven. 6670 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2021-11-07 00:54:47,974 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:54:47,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494734666] [2021-11-07 00:54:47,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494734666] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:54:47,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136657299] [2021-11-07 00:54:47,974 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 00:54:47,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:47,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:47,975 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:54:47,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 00:54:48,436 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 00:54:48,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 00:54:48,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 117 conjunts are in the unsatisfiable core [2021-11-07 00:54:48,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:48,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7600 backedges. 0 proven. 6670 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2021-11-07 00:54:48,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:55:02,329 INFO L134 CoverageAnalysis]: Checked inductivity of 7600 backedges. 0 proven. 6670 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2021-11-07 00:55:02,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136657299] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:55:02,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1631877131] [2021-11-07 00:55:02,331 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 00:55:02,332 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 00:55:02,332 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 00:55:02,332 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 00:55:02,332 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 00:55:02,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,341 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 00:55:02,342 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:55:02,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 00:55:02,351 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_21|], 36=[|v_#valid_37|]} [2021-11-07 00:55:02,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,365 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 [2021-11-07 00:55:02,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:55:02,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:55:02,366 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,369 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,412 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 00:55:02,412 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 [2021-11-07 00:55:02,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:55:02,416 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:55:02,417 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,421 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 00:55:02,424 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,424 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 00:55:02,428 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 00:55:02,431 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,432 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,433 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 00:55:02,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:55:02,434 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,435 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 00:55:02,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:55:02,437 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 00:55:02,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-11-07 00:55:02,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,450 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 [2021-11-07 00:55:02,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:55:02,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:55:02,455 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,459 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-11-07 00:55:02,465 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,465 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:146, output treesize:143 [2021-11-07 00:55:02,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,515 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:55:02,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:55:02,517 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,524 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,528 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 00:55:02,534 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:55:02,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 311 [2021-11-07 00:55:02,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-07 00:55:02,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 293 [2021-11-07 00:55:02,550 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,555 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,556 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:55:02,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:55:02,558 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,559 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 00:55:02,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-07 00:55:02,561 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 00:55:02,563 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,568 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:55:02,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:55:02,569 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,570 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:55:02,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:55:02,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:55:02,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-07 00:55:02,577 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 300 [2021-11-07 00:55:02,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-07 00:55:02,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,605 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 [2021-11-07 00:55:02,605 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:55:02,607 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:55:02,607 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:02,620 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 [2021-11-07 00:55:02,620 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 00:55:02,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 00:55:02,622 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,640 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,653 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.1 percent of original size [2021-11-07 00:55:02,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-11-07 00:55:02,659 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:55:02,659 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:473, output treesize:347 [2021-11-07 00:55:02,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,707 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 00:55:02,709 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,709 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:55:02,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:55:02,711 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:55:02,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:55:02,718 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 [2021-11-07 00:55:02,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:55:02,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:55:02,720 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,722 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:55:02,724 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,725 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 00:55:02,730 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 00:55:02,731 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 00:55:02,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-07 00:55:02,748 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-07 00:55:02,748 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 23 treesize of output 18 [2021-11-07 00:55:02,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 00:55:02,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 00:55:02,751 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,754 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-07 00:55:02,758 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:55:02,758 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:123, output treesize:119 [2021-11-07 00:55:02,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,776 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 00:55:02,777 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,778 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 00:55:02,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 00:55:02,781 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 00:55:02,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 00:55:02,803 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 00:55:02,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 00:55:02,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:55:02,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:55:02,805 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,821 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 00:55:02,824 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:55:02,824 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 00:55:02,829 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 00:55:02,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 00:55:02,832 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 00:55:02,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-07 00:55:02,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-07 00:55:02,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2021-11-07 00:55:02,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:55:02,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 00:55:02,844 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,847 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-07 00:55:02,849 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:55:02,849 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:117 [2021-11-07 00:55:02,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,861 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 00:55:02,863 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,864 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:55:02,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 00:55:02,868 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:55:02,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:55:02,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 00:55:02,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 00:55:02,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:55:02,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:55:02,879 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:55:02,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:55:02,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:55:02,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 00:55:02,887 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:55:02,888 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 00:55:02,896 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 00:55:03,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 00:55:03,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 00:55:03,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 117, 117] total 234 [2021-11-07 00:55:03,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573908931] [2021-11-07 00:55:03,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 235 states [2021-11-07 00:55:03,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:55:03,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 235 interpolants. [2021-11-07 00:55:03,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27514, Invalid=30326, Unknown=0, NotChecked=0, Total=57840 [2021-11-07 00:55:03,850 INFO L87 Difference]: Start difference. First operand 184 states and 187 transitions. Second operand has 235 states, 235 states have (on average 1.0340425531914894) internal successors, (243), 234 states have internal predecessors, (243), 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) [2021-11-07 00:55:04,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:55:04,487 INFO L93 Difference]: Finished difference Result 368 states and 490 transitions. [2021-11-07 00:55:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2021-11-07 00:55:04,490 INFO L78 Accepts]: Start accepts. Automaton has has 235 states, 235 states have (on average 1.0340425531914894) internal successors, (243), 234 states have internal predecessors, (243), 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 182 [2021-11-07 00:55:04,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:55:04,492 INFO L225 Difference]: With dead ends: 368 [2021-11-07 00:55:04,493 INFO L226 Difference]: Without dead ends: 301 [2021-11-07 00:55:04,496 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2550 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=27514, Invalid=30326, Unknown=0, NotChecked=0, Total=57840 [2021-11-07 00:55:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-11-07 00:55:04,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2021-11-07 00:55:04,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.0133333333333334) internal successors, (304), 300 states have internal predecessors, (304), 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) [2021-11-07 00:55:04,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 304 transitions. [2021-11-07 00:55:04,514 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 304 transitions. Word has length 182 [2021-11-07 00:55:04,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:55:04,514 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 304 transitions. [2021-11-07 00:55:04,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 235 states, 235 states have (on average 1.0340425531914894) internal successors, (243), 234 states have internal predecessors, (243), 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) [2021-11-07 00:55:04,515 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 304 transitions. [2021-11-07 00:55:04,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-11-07 00:55:04,520 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:55:04,520 INFO L513 BasicCegarLoop]: trace histogram [232, 30, 30, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:55:04,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 00:55:04,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable258 [2021-11-07 00:55:04,733 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:55:04,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:55:04,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1387928243, now seen corresponding path program 10 times [2021-11-07 00:55:04,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:55:04,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044297865] [2021-11-07 00:55:04,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:55:04,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:55:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:55:23,268 INFO L134 CoverageAnalysis]: Checked inductivity of 27958 backedges. 0 proven. 27028 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2021-11-07 00:55:23,268 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:55:23,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044297865] [2021-11-07 00:55:23,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044297865] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:55:23,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713084409] [2021-11-07 00:55:23,268 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 00:55:23,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:55:23,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:55:23,269 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:55:23,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 00:55:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:55:23,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 234 conjunts are in the unsatisfiable core [2021-11-07 00:55:23,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:55:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 27958 backedges. 0 proven. 27028 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2021-11-07 00:55:24,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:18,374 INFO L134 CoverageAnalysis]: Checked inductivity of 27958 backedges. 0 proven. 27028 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2021-11-07 00:56:18,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713084409] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:56:18,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1313748273] [2021-11-07 00:56:18,377 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 00:56:18,377 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 00:56:18,378 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 00:56:18,378 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 00:56:18,378 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 00:56:18,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,393 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:56:18,394 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 00:56:18,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 00:56:18,399 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_22|], 36=[|v_#valid_38|]} [2021-11-07 00:56:18,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,414 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 [2021-11-07 00:56:18,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:56:18,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:56:18,416 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,420 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,453 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 00:56:18,453 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 [2021-11-07 00:56:18,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:56:18,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 00:56:18,457 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,461 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 00:56:18,465 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,465 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 00:56:18,468 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 00:56:18,470 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,471 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 00:56:18,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:56:18,473 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,474 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 00:56:18,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 00:56:18,475 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 00:56:18,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-11-07 00:56:18,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,489 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 [2021-11-07 00:56:18,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:56:18,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 00:56:18,492 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,497 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-11-07 00:56:18,501 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,502 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:146, output treesize:143 [2021-11-07 00:56:18,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,578 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,582 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:56:18,584 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 00:56:18,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 311 [2021-11-07 00:56:18,589 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-07 00:56:18,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 293 [2021-11-07 00:56:18,600 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,601 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:56:18,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:56:18,606 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,611 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,612 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 00:56:18,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:56:18,613 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,614 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,614 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:56:18,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:56:18,616 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 00:56:18,618 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,619 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:56:18,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 00:56:18,621 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,622 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 00:56:18,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-07 00:56:18,623 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 00:56:18,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-07 00:56:18,628 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 300 [2021-11-07 00:56:18,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-07 00:56:18,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,671 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 [2021-11-07 00:56:18,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 00:56:18,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 00:56:18,675 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:56:18,690 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 [2021-11-07 00:56:18,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:56:18,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 00:56:18,693 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,719 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,732 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.1 percent of original size [2021-11-07 00:56:18,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-11-07 00:56:18,738 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:56:18,738 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:473, output treesize:347 [2021-11-07 00:56:18,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,785 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 00:56:18,787 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,788 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:56:18,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:56:18,790 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 00:56:18,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:56:18,797 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 [2021-11-07 00:56:18,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:56:18,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 00:56:18,799 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,801 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 00:56:18,804 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,804 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 00:56:18,809 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 00:56:18,811 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 00:56:18,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-07 00:56:18,829 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-07 00:56:18,829 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 23 treesize of output 18 [2021-11-07 00:56:18,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 00:56:18,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 00:56:18,832 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,835 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-07 00:56:18,838 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:56:18,838 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:123, output treesize:119 [2021-11-07 00:56:18,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,859 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 00:56:18,861 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,862 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 00:56:18,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 00:56:18,866 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 00:56:18,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 00:56:18,888 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 00:56:18,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 00:56:18,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:56:18,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 00:56:18,891 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,894 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,897 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 00:56:18,898 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:56:18,898 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 00:56:18,902 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 00:56:18,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 00:56:18,906 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 00:56:18,907 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:56:18,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-07 00:56:18,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2021-11-07 00:56:18,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-07 00:56:18,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-07 00:56:18,919 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,922 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-07 00:56:18,925 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:56:18,925 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:137, output treesize:136 [2021-11-07 00:56:18,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,940 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 00:56:18,942 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,944 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 00:56:18,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 00:56:18,948 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 00:56:18,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 00:56:18,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 00:56:18,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 00:56:18,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:56:18,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 00:56:18,956 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 00:56:18,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:56:18,959 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:18,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 00:56:18,961 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 00:56:18,961 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 00:56:18,966 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 00:56:20,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 00:56:20,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 00:56:20,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [234, 234, 234] total 468 [2021-11-07 00:56:20,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574221129] [2021-11-07 00:56:20,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 469 states [2021-11-07 00:56:20,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:56:20,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 469 interpolants. [2021-11-07 00:56:20,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109765, Invalid=115385, Unknown=0, NotChecked=0, Total=225150 [2021-11-07 00:56:20,415 INFO L87 Difference]: Start difference. First operand 301 states and 304 transitions. Second operand has 469 states, 469 states have (on average 1.0170575692963753) internal successors, (477), 468 states have internal predecessors, (477), 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) [2021-11-07 00:56:24,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:24,117 INFO L93 Difference]: Finished difference Result 602 states and 841 transitions. [2021-11-07 00:56:24,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 468 states. [2021-11-07 00:56:24,118 INFO L78 Accepts]: Start accepts. Automaton has has 469 states, 469 states have (on average 1.0170575692963753) internal successors, (477), 468 states have internal predecessors, (477), 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 299 [2021-11-07 00:56:24,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:24,121 INFO L225 Difference]: With dead ends: 602 [2021-11-07 00:56:24,121 INFO L226 Difference]: Without dead ends: 535 [2021-11-07 00:56:24,131 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1129 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 473 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5124 ImplicationChecksByTransitivity, 71.6s TimeCoverageRelationStatistics Valid=109765, Invalid=115385, Unknown=0, NotChecked=0, Total=225150 [2021-11-07 00:56:24,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-11-07 00:56:24,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2021-11-07 00:56:24,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.0074906367041199) internal successors, (538), 534 states have internal predecessors, (538), 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) [2021-11-07 00:56:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 538 transitions. [2021-11-07 00:56:24,155 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 538 transitions. Word has length 299 [2021-11-07 00:56:24,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:24,156 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 538 transitions. [2021-11-07 00:56:24,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 469 states, 469 states have (on average 1.0170575692963753) internal successors, (477), 468 states have internal predecessors, (477), 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) [2021-11-07 00:56:24,157 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 538 transitions. [2021-11-07 00:56:24,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-11-07 00:56:24,169 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:24,170 INFO L513 BasicCegarLoop]: trace histogram [466, 30, 30, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:24,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-07 00:56:24,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:56:24,385 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:56:24,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:24,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1224758739, now seen corresponding path program 11 times [2021-11-07 00:56:24,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:56:24,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065533914] [2021-11-07 00:56:24,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:24,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:56:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 109741 backedges. 0 proven. 108811 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2021-11-07 00:57:37,314 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:57:37,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065533914] [2021-11-07 00:57:37,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065533914] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 00:57:37,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335491776] [2021-11-07 00:57:37,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 00:57:37,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:57:37,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:57:37,316 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:57:37,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 00:59:53,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-11-07 00:59:53,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 00:59:53,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-07 00:59:53,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:00,314 INFO L134 CoverageAnalysis]: Checked inductivity of 109741 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 109276 trivial. 0 not checked. [2021-11-07 01:00:00,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 109741 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 109276 trivial. 0 not checked. [2021-11-07 01:00:07,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335491776] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:00:07,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [473636644] [2021-11-07 01:00:07,482 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:00:07,482 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:00:07,482 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:00:07,483 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:00:07,483 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:00:07,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,498 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:00:07,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:00:07,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-07 01:00:07,503 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_23|], 36=[|v_#valid_39|]} [2021-11-07 01:00:07,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,515 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 [2021-11-07 01:00:07,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:00:07,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:00:07,517 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:00:07,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,520 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,551 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:00:07,552 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 [2021-11-07 01:00:07,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:00:07,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:00:07,564 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:00:07,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,568 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:00:07,572 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:00:07,573 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:127 [2021-11-07 01:00:07,576 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-07 01:00:07,582 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,583 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:00:07,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:00:07,585 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,586 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:00:07,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 01:00:07,588 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 01:00:07,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 01:00:07,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,603 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 [2021-11-07 01:00:07,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:00:07,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:00:07,606 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:00:07,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,611 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 01:00:07,616 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:00:07,617 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:153, output treesize:155 [2021-11-07 01:00:07,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,670 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,677 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,681 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:00:07,683 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:00:07,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-11-07 01:00:07,688 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 302 [2021-11-07 01:00:07,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-07 01:00:07,698 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,699 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,699 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:00:07,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 01:00:07,705 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,707 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,708 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:00:07,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:00:07,710 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,710 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:00:07,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 01:00:07,712 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 01:00:07,714 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,716 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:00:07,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 01:00:07,718 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,720 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:00:07,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 01:00:07,722 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 01:00:07,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-11-07 01:00:07,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-07 01:00:07,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 387 [2021-11-07 01:00:07,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,763 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 [2021-11-07 01:00:07,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 01:00:07,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 01:00:07,767 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:00:07,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:07,784 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 [2021-11-07 01:00:07,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:00:07,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:00:07,789 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:00:07,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,891 INFO L180 QuantifierPusher]: treesize reduction 130, result has 72.7 percent of original size [2021-11-07 01:00:07,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-11-07 01:00:07,895 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:00:07,895 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:483, output treesize:357 [2021-11-07 01:00:07,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,930 INFO L180 QuantifierPusher]: treesize reduction 54, result has 59.1 percent of original size [2021-11-07 01:00:07,932 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,933 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:00:07,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 01:00:07,935 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:00:07,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 01:00:07,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:00:07,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:00:07,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:00:07,944 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:00:07,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,946 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 01:00:07,949 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:00:07,949 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:75 [2021-11-07 01:00:07,955 INFO L180 QuantifierPusher]: treesize reduction 61, result has 65.3 percent of original size [2021-11-07 01:00:07,957 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:07,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:00:07,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-07 01:00:07,974 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-07 01:00:07,974 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 23 treesize of output 18 [2021-11-07 01:00:07,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 01:00:07,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 01:00:07,977 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:00:07,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,980 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:07,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-07 01:00:07,984 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:00:07,984 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:123, output treesize:119 [2021-11-07 01:00:07,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:07,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,010 INFO L180 QuantifierPusher]: treesize reduction 42, result has 73.8 percent of original size [2021-11-07 01:00:08,012 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:08,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,022 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:08,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:00:08,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-07 01:00:08,029 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:08,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 01:00:08,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-07 01:00:08,050 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-07 01:00:08,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2021-11-07 01:00:08,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:00:08,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:00:08,054 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:00:08,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,058 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 01:00:08,062 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:00:08,062 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2021-11-07 01:00:08,067 INFO L180 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size [2021-11-07 01:00:08,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 01:00:08,071 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-11-07 01:00:08,074 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:08,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:00:08,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-07 01:00:08,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2021-11-07 01:00:08,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-07 01:00:08,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-07 01:00:08,085 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:00:08,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,089 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-07 01:00:08,092 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:00:08,093 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:137, output treesize:136 [2021-11-07 01:00:08,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,110 INFO L180 QuantifierPusher]: treesize reduction 36, result has 75.2 percent of original size [2021-11-07 01:00:08,112 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:08,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,115 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:08,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:00:08,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:00:08,118 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:00:08,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 01:00:08,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 01:00:08,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2021-11-07 01:00:08,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:00:08,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:00:08,130 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:00:08,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:00:08,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:08,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-07 01:00:08,137 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:00:08,138 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:140 [2021-11-07 01:00:08,146 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:00:10,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:00:10,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:00:10,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [468, 33, 33] total 531 [2021-11-07 01:00:10,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108679031] [2021-11-07 01:00:10,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 531 states [2021-11-07 01:00:10,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:00:10,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 531 interpolants. [2021-11-07 01:00:10,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111842, Invalid=175990, Unknown=0, NotChecked=0, Total=287832 [2021-11-07 01:00:11,009 INFO L87 Difference]: Start difference. First operand 535 states and 538 transitions. Second operand has 531 states, 531 states have (on average 1.0225988700564972) internal successors, (543), 531 states have internal predecessors, (543), 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) [2021-11-07 01:02:02,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:02,123 INFO L93 Difference]: Finished difference Result 667 states and 737 transitions. [2021-11-07 01:02:02,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 531 states. [2021-11-07 01:02:02,125 INFO L78 Accepts]: Start accepts. Automaton has has 531 states, 531 states have (on average 1.0225988700564972) internal successors, (543), 531 states have internal predecessors, (543), 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 533 [2021-11-07 01:02:02,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:02,130 INFO L225 Difference]: With dead ends: 667 [2021-11-07 01:02:02,130 INFO L226 Difference]: Without dead ends: 600 [2021-11-07 01:02:02,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2532 GetRequests, 1530 SyntacticMatches, 0 SemanticMatches, 1002 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142016 ImplicationChecksByTransitivity, 172.0s TimeCoverageRelationStatistics Valid=359819, Invalid=647193, Unknown=0, NotChecked=0, Total=1007012 [2021-11-07 01:02:02,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-11-07 01:02:02,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2021-11-07 01:02:02,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.006677796327212) internal successors, (603), 599 states have internal predecessors, (603), 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) [2021-11-07 01:02:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 603 transitions. [2021-11-07 01:02:02,229 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 603 transitions. Word has length 533 [2021-11-07 01:02:02,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:02,230 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 603 transitions. [2021-11-07 01:02:02,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 531 states, 531 states have (on average 1.0225988700564972) internal successors, (543), 531 states have internal predecessors, (543), 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) [2021-11-07 01:02:02,232 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 603 transitions. [2021-11-07 01:02:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2021-11-07 01:02:02,246 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:02,247 INFO L513 BasicCegarLoop]: trace histogram [467, 62, 62, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:02:02,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-07 01:02:02,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable322 [2021-11-07 01:02:02,461 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:02:02,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:02,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1986505880, now seen corresponding path program 12 times [2021-11-07 01:02:02,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:02:02,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2453295] [2021-11-07 01:02:02,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:02,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:02:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:21,383 INFO L134 CoverageAnalysis]: Checked inductivity of 113184 backedges. 0 proven. 109278 refuted. 0 times theorem prover too weak. 3906 trivial. 0 not checked. [2021-11-07 01:03:21,383 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:03:21,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2453295] [2021-11-07 01:03:21,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2453295] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:03:21,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654206106] [2021-11-07 01:03:21,384 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 01:03:21,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:03:21,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:03:21,385 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:03:21,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de79805a-7377-4372-9cc8-4a2ddd3f908b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-07 01:03:22,749 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 01:03:22,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:03:22,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 3360 conjuncts, 469 conjunts are in the unsatisfiable core [2021-11-07 01:03:22,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:24,452 INFO L134 CoverageAnalysis]: Checked inductivity of 113184 backedges. 0 proven. 109278 refuted. 0 times theorem prover too weak. 3906 trivial. 0 not checked. [2021-11-07 01:03:24,452 INFO L328 TraceCheckSpWp]: Computing backward predicates...